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inform on

 - 2 dictionary results

in⋅form

1[in-fawrm]
–verb (used with object)
1. to give or impart knowledge of a fact or circumstance to: He informed them of his arrival.
2. to supply (oneself) with knowledge of a matter or subject: She informed herself of all the pertinent facts.
3. to give evident substance, character, or distinction to; pervade or permeate with manifest effect: A love of nature informed his writing.
4. to animate or inspire.
5. Obsolete.
a. to train or instruct.
b. to make known; disclose.
c. to give or impart form to.
–verb (used without object)
6. to give information; supply knowledge or enlightenment: a magazine that entertains more than it informs.
7. inform on, to furnish incriminating evidence about (someone) to an authority, prosecuting officer, etc.: He informed on his accomplices.

Origin:
1275–1325; ME informen < L infōrmāre to form, shape, equiv. to in- in- 2 + fōrmāre to form; r. ME enfourmen < MF enfourmer < L, as above


in⋅form⋅a⋅ble, adjective
in⋅form⋅ing⋅ly, adverb


1. apprise; notify, advise, tell. 2. acquaint.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Word Origin & History

inform 
1320, "to train or instruct in some specific subject," from L. informare "to shape, form, train, instruct, educate," from in- "into" + forma "form." Sense of "report facts or news" first recorded 1386. Informative "instructive" is from 1655. Informer "one who gives information against another" (especially in ref. to law-breaking) is from 1503.
Online Etymology Dictionary, © 2001 Douglas Harper
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