to leave (someone or something) alone: not to disturb, to stay away from (also: to let alone) Examples of TO LEAVE ALONE Leave the baby alone for a while and she may go to sleep. After the cat had scratched Peter twice, he let it alone.

a crime of passion: a crime committed because of very strong emotional feelings, especially in connection with a sexual relationshipExamples: He killed his lover. It was a crime of passion. She described the stabbing as a crime of passion and jealousy.

to pull off: to succeed in doing something difficult; to exit to the side of a highway Examples of TO PULL OF The group of investors pulled off a big deal by buying half the stock in that company. I wonder how they pulled it off before the company could prevent it. The motorist pulled…

to back up: to drive or go backwards (S); to defend, to support (S); to return to a previous thought Examples of TO BACK UP So it plans to buy back up to $10 million of its stock over the next few months Unfortunately, the rates haven’t gone back up, and people are dealing with…

to live it up: to spend money freely, to live luxuriously Examples of TO LIVE IT UP Jackson and Aiden saved up money for two years so that they could travel to Europe and live it up. After receiving a large inheritance from a rich aunt, I was able to live it up for years.

have got to: must (also: have to) Examples of HAVE GOT TO You have got to check out a new restaurant I found; it’s wonderful. I have got to get my essay turned in on time!