but2 S2 W3
apart from [= except]:
I could come any day but Thursday.
There's no one here but me.
I could still see nothing but the spirals of desert dust.
He was unable to swallow anything but liquids.
2 especially British English
the last or next thing or person except for one, two etc:
Pauline and Derek live in the next house but one (=they live two houses away from us).