leave on

verb

To cause or allow to remain in the on or open position.

“Should I turn off this light or leave it on?”

Similar
keep on
Opposite
shut offturn off
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Meanings

verbleave on (third-person singular simple present leaves on, present participle leaving on, simple past and past participle left on)

present singular third person leaves on · participle present leaving on · participle past left on · past left on

  1. idiomatictransitiveTo cause or allow to remain in the on or open position.

    Should I turn off this light or leave it on?

    1 more example

    Should I shut off this water or leave it on?

    Synonyms: keep on

Synonyms & antonyms

verbTo cause or allow to remain in the on or open position.

Similar
keep on
Opposite
shut offturn off
Also see
keep on
Cite this entry
APA

leave on. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/leave%20on

MLA

“leave on.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/leave%20on. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “leave on,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/leave%20on.

Source: leave on on Wiktionary, CC BY-SA 4.0.