Meaning & use
unless
Except if; used to introduce the one condition that would prevent something from happening.
See it in a sentence
We will have the picnic outdoors tomorrow unless it rains heavily.
You cannot enter the club unless you are over eighteen.
A note on using this word
Unless introduces a negative condition and is not usually combined with 'not' in the same clause, since it already implies exception.
Words with a similar meaning
except if
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Make it your own
Write a sentence using “unless”, then compare your use with the examples above.
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