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[doo; unstressed doo, duh] /du; unstressed dʊ, də/
verb (used with object), present singular 1st person do, 2nd do or (Archaic) doest or dost, 3rd does or (Archaic) doeth or doth, present plural do; past singular 1st person did, 2nd did or (Archaic) didst, 3rd did, past plural did; past participle done; present participle doing.
to perform (an act, duty, role, etc.):
Do nothing until you hear the bell.
to execute (a piece or amount of work):
to do a hauling job.
to accomplish; finish; complete:
He has already done his homework.
to put forth; exert:
Do your best.
to be the cause of (good, harm, credit, etc.); bring about; effect.
to render, give, or pay (homage, justice, etc.).
to deal with, fix, clean, arrange, move, etc., (anything) as the case may require:
to do the dishes.
to travel; traverse:
We did 30 miles today.
to serve; suffice for:
This will do us for the present.
to condone or approve, as by custom or practice:
That sort of thing simply isn't done.
to travel at the rate of (a specified speed):
He was doing 80 when they arrested him.
to make or prepare:
I'll do the salad.
to serve (a term of time) in prison, or, sometimes, in office.
to create, form, or bring into being:
She does wonderful oil portraits.
to translate into or change the form or language of:
MGM did the book into a movie.
to study or work at or in the field of:
I have to do my math tonight.
to explore or travel through as a sightseer:
They did Greece in three weeks.
(used with a pronoun, as it or that, or with a general noun, as thing, that refers to a previously mentioned action):
You were supposed to write thank-you letters; do it before tomorrow, please.
Informal. to wear out; exhaust; tire:
That last set of tennis did me.
Informal. to cheat, trick, or take advantage of:
That crooked dealer did him for $500 at poker.
Informal. to attend or participate in:
Let's do lunch next week.
Slang. to use (a drug or drugs), especially habitually:
The police report said he was doing cocaine.
Slang. to rob; steal from:
The law got him for doing a lot of banks.
Slang: Vulgar. to have sex with.
Informal. (usually in the negative) to act in accordance with expectations associated with (something specified):
Just ignore her insults—she doesn’t do polite.
verb (used without object), present singular 1st person do, 2nd do or (Archaic) doest or dost, 3rd does or (Archaic) doeth or doth, present plural do; past singular 1st person did, 2nd did or (Archaic) didst, 3rd did, past plural did; past participle done; present participle doing.
to act or conduct oneself; be in action; behave.
to proceed:
to do wisely.
to get along; fare; manage:
to do without an automobile.
to be in health, as specified:
Mother and child are doing fine.
to serve or be satisfactory, as for the purpose; be enough; suffice:
Will this do?
to finish or be finished.
to happen; take place; transpire:
What's doing at the office?
(used as a substitute to avoid repetition of a verb or full verb expression):
I think as you do.
auxiliary verb, present singular 1st person do, 2nd do or (Archaic) doest or dost, 3rd does or (Archaic) doeth or doth, present plural do; past singular 1st person did, 2nd did or (Archaic) didst, 3rd did, past plural did; past participle done; present participle doing.
(used in interrogative, negative, and inverted constructions):
Do you like music? I don't care. Seldom do we witness such catastrophes.
Archaic. (used in imperatives with you or thou expressed; and occasionally as a metric filler in verse):
Do thou hasten to the king's side. The wind did blow, the rain did fall.
(used to lend emphasis to a principal verb):
Do visit us!
noun, plural dos, do's.
Informal. a burst of frenzied activity; action; commotion.
Informal. a hairdo or hair styling.
British Slang. a swindle; hoax.
Chiefly British. a festive social gathering; party.
Verb phrases
do by, to deal with; treat:
He had always done well by his family.
do for,
  1. to cause the defeat, ruin, or death of.
  2. Chiefly British. to cook and keep house for; manage or provide for.
do in, Informal.
  1. to kill, especially to murder.
  2. to injure gravely or exhaust; wear out; ruin:
    The tropical climate did them in.
  3. to cheat or swindle:
    He was done in by an unscrupulous broker.
do over, to redecorate.
do up, Informal.
  1. to wrap and tie up.
  2. to pin up or arrange (the hair).
  3. to renovate; launder; clean.
  4. to wear out; tire.
  5. to fasten:
    Do up your coat.
  6. to dress:
    The children were all done up in funny costumes.
do with, to gain advantage or benefit from; make use of:
I could do with more leisure time.
do without,
  1. to forgo; dispense with.
  2. to dispense with the thing mentioned:
    The store doesn't have any, so you'll have to do without.
do a number on (someone). number (def 39).
do away with,
  1. to put an end to; abolish.
  2. to kill.
do one proud. proud (def 11).
do one's number. number (def 40).
do one's (own) thing. thing1 (def 19).
do or die, to make a supreme effort.
do out of, Informal. to swindle; cheat:
A furniture store did me out of several hundred dollars.
dos and don'ts, customs, rules, or regulations:
The dos and don'ts of polite manners are easy to learn.
do time, Informal. to serve a term in prison:
It's hard to get a decent job once you've done time.
do to death. death (def 15).
have to do with. have (def 37).
make do, to get along with what is at hand, despite its inadequacy:
I can't afford a new coat so I have to make do with this one.
before 900; Middle English, Old English dōn; cognate with Dutch doen, German tun; akin to Latin -dere to put, facere to make, do, Greek tithénai to set, put, Sanskrit dadhāti (he) puts
1, 27. act. 3. Do, accomplish, achieve mean to bring some action to a conclusion. Do is the general word: He did a great deal of hard work. Accomplish and achieve both connote successful completion of an undertaking. Accomplish emphasizes attaining a desired goal through effort, skill, and perseverance: to accomplish what one has hoped for. Achieve emphasizes accomplishing something important, excellent, or great: to achieve a major breakthrough. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for do in

do in

verb (transitive, adverb) (slang)
to murder or kill
to exhaust


/duː; unstressed dʊ; /
verb does, doing, did, done
to perform or complete (a deed or action) to do a portrait, the work is done
often intr; foll by for. to serve the needs of; be suitable for (a person, situation, etc); suffice there isn't much food, but it'll do for the two of us
(transitive) to arrange or fix you should do the garden now
(transitive) to prepare or provide; serve this restaurant doesn't do lunch on Sundays
(transitive) to make tidy, elegant, ready, etc, as by arranging or adorning to do one's hair
(transitive) to improve (esp in the phrase do something to or for)
(transitive) to find an answer to (a problem or puzzle)
(transitive) to translate or adapt the form or language of the book was done into a play
(intransitive) to conduct oneself do as you please
(intransitive) to fare or manage how are you doing these days?
(transitive) to cause or produce complaints do nothing to help
(transitive) to give or render your portrait doesn't do you justice, do me a favour
(transitive) to work at, esp as a course of study or a profession he is doing chemistry, what do you do for a living?
(transitive) to perform (a play, etc); act they are doing ``Hamlet'' next week
(transitive) to travel at a specified speed, esp as a maximum this car will do 120 mph
(transitive) to travel or traverse (a distance) we did 15 miles on our walk
(takes an infinitive without to) used as an auxiliary before the subject of an interrogative sentence as a way of forming a question do you agree?, when did John go out?
(takes an infinitive without to) used as an auxiliary to intensify positive statements and commands I do like your new house, do hurry!
(takes an infinitive without to) used as an auxiliary before a negative adverb to form negative statements or commands he does not like cheese, do not leave me here alone!
(takes an infinitive without to) used as an auxiliary in inverted constructions little did he realize that, only rarely does he come in before ten o'clock
used as an auxiliary to replace an earlier verb or verb phrase to avoid repetition he likes you as much as I do
(transitive) (informal) to visit or explore as a sightseer or tourist to do Westminster Abbey
(transitive) to wear out; exhaust
(intransitive) to happen (esp in the phrase nothing doing)
(transitive) (slang) to serve (a period of time) as a prison sentence he's doing three years for burglary, he's doing time
(transitive) (informal) to cheat or swindle
(transitive) (slang) to rob they did three shops last night
(transitive) (slang)
  1. to arrest
  2. to convict of a crime
(transitive) (Austral, informal) to lose or spend (money) completely
(transitive) (slang, mainly Brit) to treat violently; assault
(transitive) (slang) to take or use (a drug)
(transitive) (taboo, slang) (of a male) to have sexual intercourse with
(transitive) to partake in (a meal) let's do lunch
(informal) do, do a, to act like; imitate he's a good mimic – he can do all his friends well
do or die, to make a final or supreme effort
how do you do?, a conventional formula when being introduced
make do, to manage with whatever is available
noun (pl) dos, do's
(slang) an act or instance of cheating or swindling
(informal, mainly Brit & NZ) a formal or festive gathering; party
(informal) do's and don'ts, those things that should or should not be done; rules
Word Origin
Old English dōn; related to Old Frisian duān, Old High German tuon, Latin abdere to put away, Greek tithenai to place; see deed, doom


noun (pl) dos
a variant spelling of doh1


Dominican Republic


Doctor of Optometry
Doctor of Osteopathy
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for do in
M.E. do, first person singular of O.E. don "make, act, perform, cause," from W.Gmc. *don, from PIE base *dhe- "to put, place, do, make" (see factitious). Slang meaning "to do the sex act with or to" is from 1913. Third person does was a Northumbrian variant in O.E. that displaced doth, doeth 16c.-17c. The pt. did is O.E. dyde, the only remainder in Gmc. of the old linguistic pattern of forming a pt. by reduplication of the stem of the present tense. Far back in Gmc. the equivalent of did was used as a suffix to make the past tenses of other verbs, hence the English -ed suffix (O.E. -de). The pp. done grew out of O.E. pp. gedon, but the only vestige of the prefix is in ado. Use as an auxiliary began in M.E. Periphrastic form in negative sentences ("They did not think") replaced the O.E. negative particles ("Hie ne wendon"). U.S. Southern use of done in phrases like "he done gone to the store" is attested from 1827, according to OED: "a perfective auxiliary or with adverbial force in the sense 'already; completely.' " Slang done for "doomed" is from 1842. Expression do or die is attested from 1620s.
Online Etymology Dictionary, © 2010 Douglas Harper
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Slang definitions & phrases for do in


  1. A party or other gathering; affair; shindig: a few of the other main do's/ The Tweed do was held early last December (1824+)
  2. (also doo) A haircut or styling: Your hair, your doo/ Yuppie bikers favor short fashionboy dos or neat ponytails (1960s + Black)
  3. Excrement; feces: I stepped in doggy-do: A children's term, perhaps first used in dog-do or doggy-do (1920s+)
  4. Something one should do or must do: Always in the phrase dos and don'ts: Being friendly is a do, but being possessive is a don't
  1. To cheat; swindle: He is hated by all the beggars above him, and they do him every chance they get (1641+)
  2. To eat or drink; partake of: The dated sense has to do mainly with drinks; the revived sense is usually in the phrase do lunch: That was where I'd be ''doing lunch'' with Mark Bradley/ The expressions ''doing lunch'' and ''fun'' lead the llth annual list of ''banished words'' (1853+)
  3. To use or take narcotics: Hell, half the people doing blow are reacting to the cut/ I'd wonder why and do another line. But I never looked at it as if I were some big drug addict (1960s + Narcotics)
  4. To serve a prison sentence: He did six years up at San Quentin (1860s+)
  5. To visit; make the rounds of: Shall we do Provence this summer? (1888+)
  6. To kill; do to death; rub out: The guy she's having cocktails with is the one who done her?/ I'm the guy doing these colored girls (1350+)
  7. To do the sex with or to; boff, fuck: Heidi Does Hollywood (1913+)
Related Terms

do someone dirt, do-gooder, do it all, do one's number, doodad, do-rag, do one's stuff, do time, do up, do something up brown, whoop-de-do

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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Related Abbreviations for do in


  1. defense order
  2. dissolved oxygen
  3. Doctor of Optometry
  4. Doctor of Osteopathy
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Idioms and Phrases with do in
Tire out, exhaust, as in Running errands all day did me in. [ ; early 1900s ]
Also see: done in
Kill, as in Mystery writers are always thinking of new ways to do their characters in. [ ; early 1900s ]
Also see def. 4.
Ruin utterly; also cheat or swindle. For example, The five-alarm fire did in the whole block, or His so-called friend really did him in. [ First half of 1900s ]
do oneself in. Commit suicide, as in She was always threatening to do herself in. [ ; first half of 1900s ]
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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