noun

1. (grammar) A morpheme added at the end of a word to modify the word's meaning.

   “The suffix "-able" changes "sing" into "singable".”

2. A subscript.

3. A final segment of a string of characters.

   “The string "abra" is both a prefix and a suffix of the string "abracadabra".”

Synonyms: affix

verb

1. To append (something) to the end of something else.