(rare) To mark a calf by cutting its ear.

(rail transport, Britain) A railroad tie. / (carpentry) A structural beam in a floor running perpendicular to both the joists beneath and floorboards above.

Characterized by an absence of sleep.

(informal) A sleepy person. / The ruddy duck.

Alternative form of sleepyhead

(archaic) Third-person singular simple present indicative form of sleep

plural of sleeper

The act of walking while not conscious or aware of it, during one's sleep.

present participle of sleepwalk

Lack of sleep; the property of being sleepless.