annul

One entry found for annul.

Main Entry: an·nul
Pronunciation: &-'n&l
Function: transitive verb
Inflected Form(s): an·nulled; an·nul·ling
Etymology: Middle English annullen, from Anglo-French annuller, from Late Latin annullare, from Latin ad- + nullus not any -- more at NULL
1 : to reduce to nothing : OBLITERATE
2 : to make ineffective or inoperative : NEUTRALIZE <annul the drug's effect>
3 : to declare or make legally invalid or void <wants the marriage annulled>
synonym see NULLIFY