Meaning of "fuss" in Essential English Dictionary

fuss

noun uk /fʌs/

excitement or worry about something that is not important:

What’s all the fuss about?
make a fuss

to complain about something:

He made a big fuss because I was five minutes late.
make a fuss of someone

to give someone a lot of attention and treat them well:

My uncle always makes a big fuss of the children.
make a fuss over someone

to give someone a lot of attention and treat him or her well:

My uncle always makes a big fuss over the children.

(Definition of “fuss noun” from the Cambridge Essential Dictionary © Cambridge University Press)