(cinematography) In the daytime, with a blue filter, causing the scene to look as if it were shot in moonlight.

A river (the Niagara River) which flows from Lake Erie, over Niagara Falls into Lake Ontario; the geographical region of the United States and Canada in proximity to this river.

(figuratively) A flood, torrent, or outpouring, especially one of massive proportions. / A Niagara grape.

Alternative spelling of night glass

A spyglass or binoculars with large diameter lenses, used to see objects better in the dark.

A hard, corrosion-resistant alloy of copper, zinc and nickel used to make domestic silverware.

The state of being niggardly; parsimony.

(literally) Going away from one's usual residence for an entire night, and returning the next day.

plural of night emission

An ejaculation or orgasm while asleep, often accompanied by an erotic dream.