marker.

1. Something that identifies, indicates, or distinguishes a feature or condition.

2. An instrument used to write or draw marks, commonly with a felt or fiber tip.

3. A person who assesses and grades written work.

Use it for

Words that belong together

• biological marker
• marker of status

On the page

The gesture became a marker of group membership.

Usage notes

Primary category: analysis / argumentation / evidence. Forms: Singular marker; plural markers. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Commonness: moderately common.