Idioms

To make someone feel deep emotional pain, often by ending a relationship.

To do or say something that eases tension and gets people talking comfortably in an unfamiliar social situation.

to stop concealing one's true position or intentions and make them known

to reach the point where revenue equals costs — no profit, no loss

to do something that has never been done before; to pioneer

to openly depart from the shared position of one's own group

to get past the main obstacle so that the remaining work becomes easier

to do something new and different that sets a new standard

to be the single decisive factor between success and failure

the final small addition that makes a situation unbearable