Meaning of “all” - Learner’s Dictionary

all

pronoun, determiner uk us /ɔːl/
EVERY ONE

A1 every person or thing in a group:

We were all dancing.
I've watched all of the programmes in the series.
WHOLE AMOUNT

A2 the whole amount of something:

Who's eaten all the cake?
He spends all of his money on clothes.
WHOLE TIME

A1 the whole of a period of time:

He's been studying all day.
ONLY THING

B1 the only thing:

All I remember is waking up in hospital.
I'm sorry, this is all I can offer you.
at all

B1 in any way:

He hasn't changed at all.
UK Can I help at all?
in all

B2 in total:

There were twenty people at the meeting in all.

(Definition of “all pronoun, determiner” from the Cambridge Learner’s Dictionary © Cambridge University Press)