app.

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|legal}} {{abbreviation of|en|appendix}} (text added to the end of a book or an article).
2. {{abbreviation of|en|apprentice}}.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.