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My prediction has come true sooner than I thought.
a new test for detecting certain cancers much sooner than before
I’d sooner marry no one than marry a fool like him.
‘Do you want to go out to eat?’ ‘I’d sooner stay in.’
No sooner had I walked in the door than the phone rang.
The whole thing was going to go wrong sooner or later.
The sooner you do your homework, the sooner you can go out.
This is the British English definition of sooner. View American English definition of sooner.