annotation — English Dictionary

Noun

1. A critical or explanatory commentary or analysis.

   Usage

   • Countable
   • Uncountable

   Examples

   She added an annotation in the margin to clarify the text.

2. A comment added to a text.

   Usage

   • Countable
   • Uncountable

   Examples

   make an annotation

   The manuscript was filled with helpful annotations.

   More examples (1)

   The teacher asked students to submit essays with proper annotation.

3. The process of writing such comment or commentary.

   Usage

   • Countable
   • Uncountable

4. Metadata added to a document or program.

   Usage

   • Countable
   • Uncountable

5. Information relating to the genetic structure of sequences of bases.

   Usage

   • Countable
   • Uncountable

Noun

1. a comment or instruction (usually added)

   Synonyms

   notenotation

   Broader terms

   commentcommentary

   Examples

   his notes were appended at the end of the article

   he added a short notation to the address on the envelope

2. the act of adding notes

   Synonyms

   annotating

   Broader terms

   expansionexpanding upon