annotation

UK: /ˌænəʊˈteɪʃ^ən/ US: /ˌænəˈteɪʃən/ ,(an′ə tā′shən)

WordReference Random House Learner's Dictionary of American English © 2026

an•no•ta•tion /ˌænəˈteɪʃən/   n. 

1. [uncountable] the act of annotating.
2. [countable] a mark or note added to text or pictures.
See -nota-.

WordReference Random House Unabridged Dictionary of American English © 2026

an•no•ta•tion  (an′ə tā′shən), n. 

1. a critical or explanatory note or body of notes added to a text.
2. the act of annotating.
3. note (def. 1). Abbr.: annot.

• Latin annotātiōn- (stem of annotātiō). See annotate, -ion
• 1425–75