Definition of inform in English:

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Pronunciation: /inˈfôrm/


1 [reporting verb] Give (someone) facts or information; tell: [with object]: he wrote to her, informing her of the situation [with object and clause]: they were informed that no risk was involved [no object]: the role of television is to inform and entertain
More example sentences
  • In fact I was informed that the people of the area, not just the parents, had the same claim on the school as the Department.
  • We could book our place on the lake and would have a guaranteed swim for the night; in fact we were informed that only six people were allowed to fish at night at any one time.
  • If someone leaves a comment on one of your posts, you are sent an e-mail informing you of this fact, and containing the comment.
tell, notify, apprise, advise, impart to, communicate to, let someone know;
brief, prime, enlighten, send word to, give/supply information to
informal fill someone in, clue someone in
1.1 [no object] Give incriminating information about someone to the police or other authority: people called a confidential hotline to inform on friends, neighbors, and family members
More example sentences
  • When arrested he referred to him because he believed that that man, who had left his house two minutes before the police arrived, had informed on him.
  • The staff were not expected to inform on clients but should refer matters to their superior.
  • Word has gotten round that they informed to the police, and it seems I, as an associate, have been tarred with the same brush.
denounce, give away, betray, incriminate, inculpate, report, finger;
sell out, stab in the back
informal rat on/out, squeal on, tell on, blab on, tattle on, blow the whistle on, sell down the river, snitch on
2 [with object] Give an essential or formative principle or quality to: the relationship of the citizen to the state is informed by the democratic ideal
More example sentences
  • New development needs to be informed by the principles of urbanism.
  • Religion can inform every aspect of a person's life, including politics, and this, I think, is not a bad thing.
  • The writing in Mapping is top quality because it is informed by design experience.
suffuse, pervade, permeate, infuse, imbue, inspire;


Middle English enforme, informe 'give form or shape to', also 'form the mind of, teach', from Old French enfourmer, from Latin informare 'shape, fashion, describe', from in- 'into' + forma 'a form'.

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Syllabification: in·form

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