adverb

tonight

tonight

Are you busy tonight?

Are you busy tonight?

Tonight is the big game.

Tonight is the big game.

((adverb of time)) on the evening or night of the current day. Are you free tonight?

((noun)) the evening or night of the current day. Tonight will be a special night.

Synonyms: this evening

From Old English 'tō niht', meaning 'on this night'.

It's a straightforward combination of 'to' and 'night', referring to the current night.

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