Meaning of “mess” - Learner’s Dictionary

mess

noun [ C ] us uk /mes/
His house is a right mess.Have you got something I could wipe this mess up with?It's a bit much to expect me to tidy up their mess.Mum had a fit when she saw the mess we'd made.We need to clean up this mess.
UNTIDY

B1 Someone or something that is a mess, or is in a mess, is dirty or untidy:

[ usually singular ] My hair's such a mess!
The house is in a mess.
Don't make a mess in the kitchen!
DIFFICULT

B2 a confused or difficult situation:

[ usually singular ] She told me that her life was a mess.
If he hadn't lied, he wouldn't be in / this mess now.
make a mess of sth

to damage or spoil something:

He made a mess of his first marriage.
MILITARY

a place where members of the armed forces eat:

(Definition of “mess” from the Cambridge Learner’s Dictionary © Cambridge University Press)