(Germanic paganism) A festival celebrated by followers of Heathenry in late October or early November and based on the Germanic tradition of ancestor worship.

All the time; round the clock; unceasingly.

Synonym of chalk and cheese (“two things that are very different”)

A school, typically used for the purpose of continuing education with classes held predominantly in the evening to accommodate students with typical day shift work schedules.

A period of darkness that occurs in winter in polar regions north from the Arctic Circle and south from the Antarctic Circle, and during which the sun stays below the horizon.

(medicine) unable to see clearly in low light; suffering from night blindness.

(archaic, euphemistic) Human faeces.

(folklore) a demon that gives rise to sleep paralysis

(chiefly US) That rides out at night, especially to carry out acts of violence.

plural of grey night