Idioms with BACK

have your back
to always be ready to defend, protect or support you
Don’t worry. We’ve got your back.

watch your back
to be careful because other people may try to harm or trick you
You need to watch your back at work.

break your back
to work very hard
He broke his back to get the project done before the deadline.

behind your back
without your knowledge
People laughed at him behind his back.

never look back
to become more successful after a particular success
After winning the scholarship, she never looked back.