from The American Heritage® Dictionary of the English Language, 4th Edition

  • transitive v. To fail to include or mention; leave out: omit a word.
  • transitive v. To pass over; neglect.
  • transitive v. To desist or fail in doing; forbear.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • v. To leave out or exclude.
  • v. To fail to perform.
  • v. To neglect or take no notice of.

from the GNU version of the Collaborative International Dictionary of English

  • transitive v. To let go; to leave unmentioned; not to insert or name; to drop.
  • transitive v. To forbear or fail to perform or to make use of; to leave undone; to neglect; to pass over.

from The Century Dictionary and Cyclopedia

  • To fail to use or to do; neglect; disregard: as, to omit a duty; to omit to lock the door.
  • To fail, forbear, or neglect to mention or speak of; leave out; say nothing of.
  • To leave out; forbear or fail to insert or include: as, to omit an item from a list.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • v. prevent from being included or considered or accepted
  • v. leave undone or leave out


Middle English omitten, from Latin omittere : ob-, against, away; see ob- + mittere, to send.
(American Heritage® Dictionary of the English Language, Fourth Edition)
(at least by 1422) Enters Late Middle English, from Latin omittere which means literally “to let go”, from ob- + mittere (“to send”), but also had the connotations to ‘fail to perform’ and ‘to neglect’. (Wiktionary)


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