Phrasal Verbs with BACK
to stop supporting a plan or idea
They seem to be backing away from their proposal.
to withdraw a claim or commitment due to strong opposition
The city council was forced to back down on its plan.
to stop bothering or annoying someone
She was getting irritated, so he backed off.
to decide not to do something you agreed to do
They backed out of the deal at the last minute.
to support someone or something
We will back you up if they don’t believe you.