1 used for showing the reason something happens or the reason why it is described in a particular way
I couldn’t phone you because I hadn’t got your number.
It’s a really useful book because it explains everything very clearly.
The hotel’s difficult to find because the road isn’t signposted.
‘Why all this fuss about security?’ ‘Because it’s important.’
He’s always criticizing me – maybe it’s because I’m a woman.
because of: Stacey retired in 1987, partly because of ill health.
Because of the Asian crisis, the company’s profits fell by 15% during 1997.
Synonyms and related words