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  1. being at or near the middle point of: in mid autumn.
  2. being or occupying a middle place or position: in the mid nineties of the last century.
  3. Phonetics. (of a vowel) articulated with an opening above the tongue relatively intermediate between those for high and low: the vowels of beet, bet, and hot are respectively high, mid, and low.Compare high(def 23), low1(def 30).
  1. Archaic. the middle.

Origin of mid1

before 900; Middle English, Old English midd- (both an adj. and the initial element of a compound; modern spellings such as mid autumn are probably a reanalysis of mid- as an adj.); cognate with Old High German mitti, Old Norse mithr, Gothic midjis, Old Irish mide, Latin medius, Greek mésos, Sanskrit madhya middle, OCS mežda limit, border


or 'mid

  1. amid.


noun Informal.
  1. a midshipman.

Origin of mid3

by shortening


  1. a combining form representing mid1 in compound words: midday; mid-Victorian.

Origin of mid-

Middle English, Old English; see mid1


  1. middle.


  1. Midshipman.


  1. Master of Industrial Design.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for mid

Contemporary Examples

Historical Examples

  • The swan pushes from the bank and floats dreaming into mid stream.

    Monday or Tuesday

    Virginia Woolf

  • "'Mid sides," answered Jourdan, turning around in his saddle.

    Dwellers in the Hills

    Melville Davisson Post

  • She was free with her money, whatever else she mid have been.

    The Nebuly Coat

    John Meade Falkner

  • He paused in mid stride, eying the escaped serf up and down.


    Everett B. Cole

  • We have also the Norman form Capel, but this may be a nickname from Mid.

British Dictionary definitions for mid


  1. phonetics of, relating to, or denoting a vowel whose articulation lies approximately halfway between high and low, such as e in English bet
  1. an archaic word for middle

Word Origin

C12 midre (inflected form of midd, unattested); related to Old Norse mithr, Gothic midjis



  1. a poetic word for amid


combining form
  1. indicating a middle part, point, time, or positionmidday; mid-April; mid-Victorian

Word Origin

Old English; see middle, mid 1


abbreviation for
  1. middle


abbreviation for
  1. Midshipman
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

Word Origin and History for mid

prep., adj.

Old English mid "with, in conjunction with, in company with, together with, among," from Proto-Germanic *medjaz (cf. Old Norse miðr, Old Saxon middi, Old Frisian midde, Old High German mitti, Gothic midjis "mid, middle"), from PIE *medhyo- "middle" (see medial (adj.)). Now surviving in English only as a prefix (mid-air, midstream, etc.); as a preposition it often is a shortened form of amid (cf. midshipman).

Online Etymology Dictionary, © 2010 Douglas Harper

mid in Medicine


  1. minimal infecting dose


  1. Middle:midbrain.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

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