Phrase guide

lock out

noun · verb · 6 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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  • US: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

Misspelling of lockout.

Definition source: English Wiktionary via Wiktextract

Usage: alt-of, misspelling

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

verb

Meaning 2

To inadvertently prevent (a person, particularly oneself) from entering a place, by leaving it locked.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

Examples

  • I've locked myself out of my room again!

Meaning relationships

Synonyms: none provided

Antonyms: let in, lock in

Broader terms: keep out

3

verb

Meaning 3

To prevent from accessing a data structure.

Definition source: English Wiktionary via Wiktextract

Topics: computing, engineering, mathematics, natural-sciences, physical-sciences, sciences

Examples

  • The synchronize keyword locks out all other threads trying to access the object.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

verb

Meaning 4

(industrial) To prevent (a person, including oneself) from powering up or turning on a machine when doing so would be dangerous (accomplished with objects such as padlocks or zip ties placed through the switch handle, for example)

Definition source: English Wiktionary via Wiktextract

Usage: transitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

verb

Meaning 5

(colloquial, sometimes humorous) To be unable to concentrate.

Definition source: English Wiktionary via Wiktextract

Usage: intransitive, transitive

Examples

  • Bro, I am totally locked out on this assignment.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

verb

Meaning 6

prevent employees from working during a strike

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: exclude, keep out, shut out, shut

History

Etymology

No etymology was provided for this word.

Across languages

Translations

17 source translations are retained for this English entry.

  • German: Aussperrung — an event in which an employer bars employees from working
  • Italian: serrata — an event in which an employer bars employees from working
  • Polish: lokaut — an event in which an employer bars employees from working
  • Swedish: lockout — an event in which an employer bars employees from working
  • Finnish: teljetä — inadvertently prevent from entering a place
  • German: aussperren — inadvertently prevent from entering a place
  • Italian: escludere — inadvertently prevent from entering a place
  • Italian: chiudersi fuori — inadvertently prevent from entering a place
  • Polish: zamykać przypadkowo — inadvertently prevent from entering a place
  • Polish: zamknąć przypadkowo — inadvertently prevent from entering a place
  • Polish: zakluczać — inadvertently prevent from entering a place
  • Polish: zakluczyć — inadvertently prevent from entering a place
  • Portuguese: trancar para fora — inadvertently prevent from entering a place
  • Swedish: låsa ute — inadvertently prevent from entering a place
  • Italian: escludere — prevent from accessing a data structure
  • Polish: zamykać na klucz — prevent from accessing a data structure
  • Polish: zamknąć na klucz — prevent from accessing a data structure