What is the meaning of Vesper?

The bell that summons worshippers to vespers; the vesper-bell.

The evening.

A vesper martini.

A vesper bat.

Evening.

wasp nest

wasp group

complicated mess

vespers (evening service)

the evening or vespers

supper, dinner (evening meal)

the evening star

the West

a vespers, a Vespers (evening service)

a vesper (evening hymn)

Source: wiktionary.org