tonight
Synonym discussion
Sense: adverb/1
'Tonight' (adverb) is the default choice for saying when something will happen — it covers both the evening and the full night period of the current day. 'This evening' is narrower, referring specifically to the hours after sunset but before late night (roughly 6–10 p.m.). Use 'this evening' when you want to be more precise about the earlier part. The noun form of 'tonight' works as a subject (Tonight is warm) or an object (I am waiting for tonight), while the adverb modifies the whole sentence. 'Tonight's' is the possessive form of the noun, used before events and conditions (tonight's show, tonight's weather). In conversation: 'I'm cooking dinner tonight' (adverb, natural); 'Tonight will be fun' (noun subject); 'Did you see tonight's news?' (possessive).
Common collocations
Nouns
- tonight's weather
- tonight's show
- tonight's game
Phrases
- tonight or tomorrow
- from tonight on
- later tonight
Prepositions
- for tonight
- until tonight
- since tonight
- by tonight
Etymology
'Tonight' comes from Old English 'toniht', a combination of 'to' (at) and 'niht' (night). The word has been used as a single unit since before the year 1000, originally meaning 'at this coming night'. Unlike many time words that changed form over the centuries, 'tonight' has stayed remarkably stable — its modern spelling and meaning are almost identical to the original compound.