something that solves a problem:
Robinson called the proposal a quick fix (=a temporary or easy solution) of limited value.
to have a problem that is difficult to solve [= (be) in a mess]:
We're going to be in a real fix if we miss that bus.
That's put us in a fix.
an amount of something, especially an illegal drug such as heroin, that you often use and badly want:
addicts looking for a fix
I need my fix of caffeine in the morning or I can't think.
to find out exactly where someone or something is:
He peered out, trying to get a fix on the enemy's position.
to understand what someone or something is really like:
I couldn't seem to get a fix on the situation.
something that has been dishonestly arranged:
People think the election was a fix.