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Definition of flag

flag

/flæɡ/
flag

Plural:flags
•
Past Simple:flagged
•
Past Participle:flagged
•
Present Participle:flagging
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flag Lexical Profile

flag Game Scores & Validity

• noun

1

A piece of cloth or similar material, typically oblong or square, attachable by one edge to a pole or rope and used as the symbol or emblem of a country or institution, or as a decoration.

Example

"The hikers raised a small flag at the summit of the mountain to celebrate their achievement."


2

A mechanism, marker, or indicator used to draw attention to a specific item, error, or status, especially in computing or document management.

Example

"The software automatically places a red flag next to any transaction that appears suspicious."


3

A plant of the iris family that has long, sword-shaped leaves, typically growing in moist or marshy habitats.

Example

"The edge of the pond was lined with tall yellow flags swaying in the breeze."

Synonyms
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• verb

1

To mark an item for attention or treatment in a specified way.

Example

"The editor will flag any spelling errors she finds in the manuscript."


2

To direct or signal someone or something to stop, often by waving the hand or an object.

Example

"We had to flag a taxi because it was pouring rain and we were running late."


3

To become tired, weaker, or less enthusiastic.

Example

"Around mid-afternoon, my energy started to flag, so I made a strong cup of coffee."

Synonyms
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Antonyms
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• Rhymes for flag

Word Origin & Etymology

First recorded in the mid 16th century, the origin is uncertain but possibly onomatopoeic, imitating the sound of cloth fluttering in the wind. The verb sense of losing energy may derive from the idea of a sail or flag hanging loosely.

Usage Trend

Historical frequency of usage in published text.

180019102020

Cite this Entry


Wordmom. (2026). Definition of Flag. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/flag
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