Meaning & use

annotation

noun·Academic

Last updated

UK/ˌænəˈteɪʃn/
US/ˌænəˈteɪʃn/

Meanings

  1. nouncountable

    A short note added to a text, picture, or other material to explain or comment on part of it.

    Grammar: Countable for each note, uncountable for the practice.

    Patterns

    • an annotation on something
    • an annotation to something

    The teacher's annotations in the margin helped me improve my essay.

    The edition includes helpful annotations for each poem.

    Add an annotation next to the unclear sentence.

  2. noununcountable

    The act or practice of adding such notes.

    Grammar: Often discussed in study skills: annotation of a text.

    Patterns

    • the annotation of something

    Annotation is a useful reading strategy.

    The annotation of old manuscripts takes years.

    She spent the evening on annotation of the report.

  3. nouncountablecomputingtechnical

    In computing and science, a label or tag attached to data or code that describes it.

    Grammar: In programming it is a metadata marker, such as a Java annotation.

    Patterns

    • an annotation for something

    Each image in the dataset has an annotation naming the objects in it.

    The code uses an annotation to mark the test methods.

    Researchers added gene annotations to the sequence.

Word forms

pluralannotations

Common combinations

add an annotation
Please add an annotation to explain this figure.
margin annotation
Her margin annotations filled the page.
detailed annotation
The edition includes detailed annotation.
annotation tool
The class used an online annotation tool.
in the annotations
You can find the sources in the annotations.

Synonyms and how they differ

note
Note is a general word for any short written remark, while annotation is a note attached to a specific passage.
comment
Comment can be spoken or written and need not be attached to a text, unlike annotation.
footnote
A footnote sits at the bottom of a page, while annotation can appear anywhere.
gloss
Gloss is a short explanation of a hard word or phrase, narrower than annotation.

Word family

annotate verb
to add notes to a text
annotated adjective
provided with explanatory notes
annotator noun
a person who adds notes
annotative adjective
relating to annotation

Commonly confused: annotation or notation?

annotation vs notation

Notation is a system of symbols, such as in music or math, whereas an annotation is an added note.

Practice

The student wrote a short ___ beside the difficult line to help her remember its meaning.

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