Lights out

verb

Word Frequency: 0.4

Definitions

1.verbTo go away or depart, especially in haste or without notice.

"the outlaws lit out for the border"

2.nounUnconsciousness.

3.nounThe time at night at which artificial lights are to be turned off, a curfew or bedtime.

4.nounThe prescribed bedtime for persons living in a boarding school or staying in a hospital.

"We were all expected to be in bed by lights-out."

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