n.
Pronunciation: ' s ə -pl ə - ˌ ment
Function: transitive verb
Date: 1749
: to add or serve as a supplement to <does odd jobs to supplement his income>
– sup · ple · men · ta · tion \ ˌ s ə -pl ə - ˌ men- ' t ā -sh ə n, -m ə n- \ noun
– sup · ple · ment · er \ ' s ə -pl ə - ˌ men-t ə r \ noun