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prefix

verb
pre·​fix
prefixed; prefixing; prefixes

Definition of prefix

 (Entry 1 of 3)

transitive verb

1 \ (ˌ)prē-​ˈfiks How to pronounce (ˌ)prē-ˈfiks (audio) \ : to fix or appoint beforehand
2 \ ˈprē-​ˌfiks How to pronounce ˈprē-ˌfiks (audio) , prē-​ˈfiks \ [ partly from 2prefix ] : to place in front especially : to add as a prefix prefix a syllable to a word

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