Phrase guide

hair up

verb · 4 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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No pronunciation record was provided for this word.

1

verb

Meaning 1

To grow (more) hair.

To grow its longer, thicker winter coat.

Definition source: English Wiktionary via Wiktextract

Usage: US, intransitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

verb

Meaning 2

To grow (more) hair.

To grow facial hair, especially after shaving; (rarely) to grow body hair.

Definition source: English Wiktionary via Wiktextract

Usage: US, intransitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

verb

Meaning 3

To cause the fur of (an animal) to puff up or stand on end.

Definition source: English Wiktionary via Wiktextract

Usage: US, transitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

verb

Meaning 4

To soil or mess up (an area, etc.) with hair.

Definition source: English Wiktionary via Wiktextract

Usage: US, transitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

No etymology was provided for this word.