sooner
1 Sooner is the comparative of soon.
2 You say the sooner the better when you think something should be done as soon as possible.
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the sooner the better phrase
Detective Holt said: `The kidnapper is a man we must catch and the sooner the better'.
3 If you say that something will happen sooner or later, you mean that it will happen at some time in the future, even though it might take a long time.
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sooner or later phrase PHR with cl
(=eventually)
Sooner or later she would be caught by the police.
4 If you say that no sooner has one thing happened than another thing happens, you mean that the second thing happens immediately after the first thing.
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no sooner phrase
(=scarcely)
No sooner had he arrived in Rome than he was kidnapped.
5 If you say that you would sooner do something or you'd sooner do it, you mean that you would prefer to do it.
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would sooner/'d sooner phrase
(=would rather)
Ford vowed that he would sooner burn his factory to the ground than build a single vehicle for war purposes... MODAL inf
I'd sooner not talk about it... MODAL not inf
I'd sooner he didn't know till I've talked to Pete... MODAL that
I would sooner give up sleep than miss my evening class... MODAL inf than inf
I'd sooner not, if you don't mind. MODAL not