annotator

noun

an·​no·​ta·​tor
variants or less commonly annotater
plural -s
Synonyms of annotatornext
: one that makes annotations

Word History

Etymology

Latin annotator, from annotatus + -or

First Known Use

1646, in the meaning defined above

Time Traveler
The first known use of annotator was in 1646

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

  1. Expanded definitions
  2. Detailed etymologies
  3. Advanced search tools
  4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now

Browse Nearby Words

Cite this Entry

“Annotator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/annotator. Accessed 14 Dec. 2025.

More from Merriam-Webster on annotator

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!