(idiomatic) A person whose preference or custom is to remain awake and active during the evening and early morning (night) hours, and who usually sleeps during part of the daytime.

plural of lady of the night

plural of night blindness

plural of night-soil

plural of night glass

plural of night-glass

plural of night hawk

plural of night bird

The ability, either naturally, by technology or by superpowers, to see in a low light or even dark environment.

A bird active at night, sometimes identified with a specific species such as a night owl or nightjar, and sometimes seen as a separate animal in its own right.