[on, awn]
so as to be or remain supported by or suspended from: Put your package down on the table; Hang your coat on the hook.
so as to be attached to or unified with: Hang the picture on the wall. Paste the label on the package.
so as to be a covering or wrapping for: Put the blanket on the baby. Put aluminum foil on the lamb chops before freezing them.
in connection, association, or cooperation with; as a part or element of: to serve on a jury.
so as to be a supporting part, base, backing, etc., of: a painting on canvas; mounted on cardboard; legs on a chair.
(used to indicate place, location, situation, etc.): a scar on the face; the book on the table; a house on 19th Street.
(used to indicate immediate proximity): a house on the lake; to border on absurdity.
in the direction of: on the left; to sail on a southerly course.
(used to indicate a means of conveyance or a means of supporting or supplying movement): on the wing; This car runs on electricity. Can you walk on your hands? I'll be there on the noon plane.
by the agency or means of: drunk on wine; talking on the phone; I saw it on television.
in addition to: millions on millions of stars.
with respect or regard to (used to indicate the object of an action directed against or toward): Let's play a joke on him. Write a critical essay on Shakespeare.
in a state or condition of; in the process of: on strike; The house is on fire!
subject to: a doctor on call.
engaged in or involved with: He's on the second chapter now.
(used to indicate a source or a person or thing that serves as a source or agent): a duty on imported goods; She depends on her friends for encouragement.
(used to indicate a basis or ground): on my word of honor; The movie is based on the book.
(used to indicate risk or liability): on pain of death.
(used to indicate progress toward or completion of an objective): We completed the project on budget.
assigned to or occupied with; operating: Who's on the switchboard this afternoon?
Informal. so as to disturb or affect adversely: My hair dryer broke on me.
Informal. paid for by, especially as a treat or gift: Dinner is on me.
taking or using as a prescribed measure, cure, or the like: The doctor had her on a low-salt diet.
regularly taking or addicted to: He was on drugs for two years.
Informal. with; carried by: I have no money on me.
(used to indicate time or occasion): on Sunday; We demand cash on delivery.
(used to indicate the object or end of motion): to march on the capital.
(used to indicate the object or end of action, thought, desire, etc.): to gaze on a scene.
(used to indicate subject, reference, or respect): views on public matters.
(used to indicate an encounter): The pickpocket crept up on a victim.
in, into, or onto a position of being supported or attached: Sew the buttons on.
in, into, or onto a position of covering or wrapping: Put your raincoat on.
fast to a thing, as for support: Hold on!
toward a place, point, activity, or object: to look on while others work.
forward, onward, or along, as in any course or process: further on.
with continuous activity: to work on.
into or in active operation or performance: Turn the gas on.
operating or in use: The television set was on. Is your brake on?
taking place; occurring: Don't you know there's a war on?
performing or broadcasting: The radio announcer told us we were on.
behaving in a theatrical, lively, or ingratiating way: Around close friends, one doesn't have to be on every minute.
functioning or performing at one's best: When she's on, no other tennis player is half as good.
scheduled or planned: Anything on after supper?
Baseball. positioned on a base or bases: They had two men on when he hit the home run.
Cricket. noting that side of the wicket, or of the field, on which the batsman stands.
Cricket. the on side.
on and off. off ( def 22a ).
on and on, at great length, so as to become tiresome: They rambled on and on about their grandchildren.
on the bow, Nautical, bow3 ( def 8 ).
on to, aware of the true nature, motive, or meaning of: I'm on to your little game.

before 900; Middle English on, an, Old English: on, in, to; cognate with Dutch aan, German an, Old Norse ā, Gothic ana; akin to Greek aná up, upon (see ana-)

on, on to, onto.
Dictionary.com Unabridged


Biblical name of Heliopolis.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
on (ɒn)
1.  in contact or connection with the surface of; at the upper surface of: an apple on the ground; a mark on the table cloth
2.  attached to: a puppet on a string
3.  carried with: I've no money on me
4.  in the immediate vicinity of; close to or along the side of: a house on the sea; this verges on the ridiculous!
5.  within the time limits of a day or date: he arrived on Thursday
6.  being performed upon or relayed through the medium of: what's on the television?
7.  at the occasion of: on his retirement
8.  used to indicate support, subsistence, contingency, etc: he lives on bread; it depends on what you want
9.  a.  regularly taking (a drug): she's on the pill
 b.  addicted to: he's on heroin
10.  by means of (something considered as a mode of transport) (esp in such phrases as on foot, on wheels, on horseback, etc)
11.  in the process or course of: on a journey; on strike
12.  concerned with or relating to: a tax on potatoes; a programme on archaeology
13.  used to indicate the basis, grounds, or cause, as of a statement or action: I have it on good authority
14.  against: used to indicate opposition: they marched on the city at dawn
15.  used to indicate a meeting or encounter: he crept up on her
16.  (used with an adjective preceded by the) indicating the manner or way in which an action is carried out: on the sly; on the cheap
17.  informal
 a.  staked or wagered as a bet: ten pounds on that horse
 b.  charged to: the drinks are on me
18.  (usually followed by it)
 (Austral) drinking alcoholic liquor
19.  informal, dialect or to the loss or disadvantage of: the old car gave out on us
20.  in the position or state required for the commencement or sustained continuation, as of a mechanical operation: the radio's been on all night
21.  attached to, surrounding, or placed in contact with something: the girl had nothing on
22.  taking place: what's on tonight?
23.  in a manner indicating continuity, persistence, concentration, etc: don't keep on about it; the play went on all afternoon
24.  in a direction towards something, esp forwards; so as to make progress: we drove on towards London; march on!
25.  on and off, off and on intermittently; from time to time
26.  on and on without ceasing; continually
27.  functioning; operating: turn the switch to the on position
28.  informal (postpositive)
 a.  performing, as on stage: I'm on in five minutes
 b.  definitely taking place: the match is on for Friday; their marriage is still on
 c.  tolerable, practicable, acceptable, etc: your plan just isn't on
 d.  (of a person) willing to do something
29.  informal on at nagging: she was always on at her husband
30.  cricket (of a bowler) bowling
31.  cricket
 a.  (modifier) relating to or denoting the leg side of a cricket field or pitch: the on side; an on drive
 b.  (in combination) used to designate certain fielding positions on the leg side: long-on; mid-on
[Old English an, on; related to Old Saxon an, Old High German, Gothic ana]

On (ɒn)
the ancient Egyptian and biblical name for Heliopolis

abbreviation for
1.  Old Norse
2.  (esp in postal addresses) Ontario

abbreviation for
Office for National Statistics

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

O.E. on, unstressed variant of an "in, on, into," from P.Gmc. (cf. Du. aan, Ger. an, Goth. ana "on, upon"), from PIE base *ano "on" (cf. Avestan ana "on," Gk. ana "on, upon," L. an-, O.C.S. na, Lith. nuo "down from"). Also used in O.E. in many places where we would now use in. From 16c.-18c. (and still
in northern England dialect) often reduced to o'. Phrase on to "aware" is from 1877.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

-on 1

  1. A subatomic particle: neutron.

  2. A unit: photon.

  3. A basic hereditary unit: codon.

-on 2
Inert gas: radon.

-on 3
A chemical compound that is not a ketone or a compound that contains oxygen in a carbonyl group: parathion.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Abbreviations & Acronyms
  1. Old Norse

  2. Ontario

Oncology Nursing Society
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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Bible Dictionary

On definition

light; the sun, (Gen. 41:45, 50), the great seat of sun-worship, called also Bethshemesh (Jer. 43:13) and Aven (Ezek. 30:17), stood on the east bank of the Nile, a few miles north of Memphis, and near Cairo, in the north-east. The Vulgate and the LXX. Versions have "Heliopolis" ("city of the sun") instead of On in Genesis and of Aven in Ezekiel. The "city of destruction" Isaiah speaks of (19:18, marg. "of Heres;" Heb. 'Ir-ha-heres, which some MSS. read Ir-ha-heres, i.e., "city of the sun") may be the name given to On, the prophecy being that the time will come when that city which was known as the "city of the sun-god" shall become the "city of destruction" of the sun-god, i.e., when idolatry shall cease, and the worship of the true God be established. In ancient times this city was full of obelisks dedicated to the sun. Of these only one now remains standing. "Cleopatra's Needle" was one of those which stood in this city in front of the Temple of Tum, i.e., "the sun." It is now erected on the Thames Embankment, London. "It was at On that Joseph wooed and won the dark-skinned Asenath, the daughter of the high priest of its great temple." This was a noted university town, and here Moses gained his acquaintance with "all the wisdom of the Egyptians."

Easton's 1897 Bible Dictionary
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Example sentences for ons
The uk ons study reported only two motives to draw attention and because of anger.
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