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⇱ substitutional - WordReference.com Dictionary of English



WordReference Random House Learner's Dictionary of American English © 2026
sub•sti•tute /ˈsʌbstɪˌtut, -ˌtyut/USA pronunciation   n., v., -tut•ed, -tut•ing, adj. 
n. 
  1. a person or thing serving in place of another: [countable]The coach sent in a substitute when his star player was injured.[uncountable]For most of us there is simply no substitute for hard work.

v. 
  1. to put (a person or thing) in the place of another:[+ object + for + object]We substituted fish for meat several times a week.
  2. to act as a substitute:[no object]substituting when the regular teachers were sick.

adj. [before a noun]
  1. of or relating to a substitute or substitutes:a substitute teacher.
sub•sti•tu•tion, n. [uncountable]the substitution of one budget problem for another.[countable]The coach made a few substitutions in the defensive team.See -stit-.

WordReference Random House Unabridged Dictionary of American English © 2026
sub•sti•tute  (substi to̅o̅t′, -tyo̅o̅t′),USA pronunciation n., v., -tut•ed, -tut•ing, adj. 
n. 
  1. a person or thing acting or serving in place of another.
  2. American History, Military(formerly) a person who, for payment, served in an army or navy in the place of a conscript.
  3. Grammara word that functions as a replacement for any member of a class of words or constructions, as do in He doesn't know but I do.

v.t. 
  1. to put (a person or thing) in the place of another.
  2. to take the place of; replace.
  3. Chemistryto replace (one or more elements or groups in a compound) by other elements or groups.

v.i. 
  1. to act as a substitute.

adj. 
  1. of or pertaining to a substitute or substitutes.
  2. composed of substitutes.
  • Latin substitūtus (past participle of substituere to put in place of ), equivalent. to sub- sub- + -stitū-, combining form of statū-, past participle stem of statuere (see substituent) + -tus past participle suffix
  • Middle English 1350–1400
substi•tut′a•ble, adj. 
sub′sti•tut′a•bili•ty, n. 
substi•tut′er, n. 
substi•tut′ing•ly, adv. 
sub′sti•tution, n. 
sub′sti•tution•al•ly, adv. 
    1. alternative, replacement, equivalent.

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