- an annulling or being annulled
- an invalidation, as of a marriage, by the decree of a court
- An act of annulling.
- The invalidation of a marriage, as for nonconsummation, effected by means of a declaration stating that the marriage was never valid.
Recorded since the 15th century (sense destruction); from to annul (from Middle English annullen, from Middle French annuller, from Latin annullare, from ad 'to' nullus 'not any, nothing' + verbal ending -are)+ -ment 'means to' (from Latin -mentum)