annotator
|an-no-ta-tor|
🇺🇸
/ˈænəˌteɪtər/
🇬🇧
/ˈænəˌteɪtə/
(annotate)
adding notes
Etymology
'annotator' originates from Latin, specifically the verb 'annotare' (from 'ad-' + 'notare'), where 'ad-' meant 'to/toward' and 'notare' meant 'to mark or note'.
'annotator' developed from Medieval Latin 'annotator' and from the past participle 'annotatus' of Latin 'annotare', passed into Late Latin/Medieval Latin and then into English via scholarly/technical use.
Initially, it meant 'one who makes notes or marks' in a literal sense; over time it retained that core meaning and also extended into technical senses such as a person or tool that labels data in computing.
Meanings by Part of Speech
Noun 1
a person or device that adds notes, comments, or explanatory remarks (annotations) to a text, document, image, or other work.
The annotator added helpful comments to the manuscript to explain obscure references.
Synonyms
Noun 2
in data science and machine learning, a person or tool that labels or tags data (e.g., images, text, audio) for use in training and validating models (also called a labeler or tagger).
Each image in the dataset was reviewed by an annotator to ensure accurate labels for training.
Synonyms
Last updated: 2025/08/16 09:06