- an affix placed before a word, base, or another prefix to modify a term's meaning, as by making the term negative, as un- in unkind, by signaling repetition, as re- in reinvent, or by indicating support, as pro- in proabolition. Compatible prefixes can work together, as un- and re- in unrefundable.
- something prefixed, as a title before a person's name: She uses the prefix “Ms.” rather than "Mrs."
- to fix or put before or in front:to prefix an impressive title to one's name.
- to add as a prefix.
- to fix, settle, or determine beforehand: If you call a taxi, the rate to the airport will be prefixed.
- to apply the first of two fixatives to.
- an affix that precedes the stem to which it is attached, as for example un- in unhappy
- something coming or placed before
- to put or place before
- to add (a morpheme) as a prefix to the beginning of a word
