Phrase guide

run in

adj · noun · verb · 10 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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1

adj

Meaning 1

Alternative form of run-in (adjective) (styled open when in predicative position)

(not comparable) Having been run in before or behind previous text.

Definition source: English Wiktionary via Wiktextract

Usage: adjective, error-misspelling, not-comparable, participle, usually

Topics: communications, editing, journalism, literature, media, publishing, typography, writing

Examples

  • These headings are run in because a free-hanging style would just be a waste of column inches.

Meaning relationships

Synonyms: none provided

Antonyms: free-hanging

2

adj

Meaning 2

Alternative form of run-in (adjective) (styled open when in predicative position)

(sometimes comparable) Having been run in to seat the parts.

Definition source: English Wiktionary via Wiktextract

Usage: adjective, error-misspelling, not-comparable, participle, usually

Topics: engineering, mechanical, mechanical-engineering, natural-sciences, physical-sciences

Examples

  • The engine should be well run in before its heavy working life begins.

Meaning relationships

Synonyms: broken in

Antonyms: none provided

3

noun

Meaning 3

Alternative spelling of run-in (omitting the hyphens from nouns of this type is nonstandard in formal publications but widely seen in unedited writing)

Definition source: English Wiktionary via Wiktextract

Usage: alt-of, alternative

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

verb

Meaning 4

To arrest; (especially) to track down and arrest.

Definition source: English Wiktionary via Wiktextract

Usage: informal, transitive

Qualifier: chiefly passive voice

Examples

  • The guys who robbed the bank last week have finally been run in.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

verb

Meaning 5

To use new machinery at less than full speed, preventing damage.

Definition source: English Wiktionary via Wiktextract

Usage: UK, transitive

Examples

  • I have to drive slowly for the first 1,000 miles to run the engine in.

Meaning relationships

Synonyms: break in

Antonyms: none provided

6

verb

Meaning 6

To start a new regime slowly.

Definition source: English Wiktionary via Wiktextract

Usage: figuratively

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: phase in

Antonyms: none provided

7

verb

Meaning 7

To score (a try).

Definition source: English Wiktionary via Wiktextract

Topics: ball-games, games, hobbies, lifestyle, rugby, sports

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

verb

Meaning 8

To insert (a word, etc.) without making a line break or new paragraph (so that it is not free-hanging).

Definition source: English Wiktionary via Wiktextract

Topics: media, printing, publishing, typography

Examples

  • With these subsections, it is better to run their headings in.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

verb

Meaning 9

To alter the position of matter to fill vacant space.

Definition source: English Wiktionary via Wiktextract

Topics: media, printing, publishing

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

10

verb

Meaning 10

simple past and past participle of run in

Definition source: English Wiktionary via Wiktextract

Usage: form-of, participle, past

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.