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To be thankful or grateful for one's good luck usually while avoiding a bad situation
You should count your lucky stars as you managed to avoid that violent car accident.
To punish someone or something harshly
He's a really strict teacher, so he'll definitely lower the boom on you if you don't do your homework.
In a bad situation, the worst possible outcome will always happen
That one subject i didnt learn was put on the test. Bread always falls on the buttered side i guest.
Said when someone reads books all the time
Whenever I come to visit Jenny's house, I notice that she always has her nose in a book.
To work very diligently and energetically
John works like a beaver to finish all assignments which are required to submit before May 11.
Extremely stupid
Did you follow his guide and take your mom's money? You are thick as mince.