English Vocabulary

at the back of your mind (something in your mind that you do not spend time thinking about it) At the back of my mind is the fear of failing the exam. The thought that Sophia might come back was always at the back of his mind.   envocabulary.com

  a mind of its own (something that works or moves in a way you do not expect) I can’t get this cellphone to work right. It seems to have a mind of its own. My computer seems to have a mind of its own today; it’s not working properly. …

  mind of your own (act or think independently) I advised my son to go to college, but he has a mind of his own and insists on trying to become a soccer player. You should be a man without fear, with a mind of your own.     envocabulary.com

a weight off your mind (a big problem that you no longer have to worry about) Paying my debts was a weight off my mind. I finally manage to quit smoking. It’s a real weight off my mind.   envocabulary.com

back up (to support someone) I’ll back you up throughout the court case.   (to prove that what someone is saying is true) Recent study backs up her claims.   (to make a copy of computer information) Make sure you back up your files every day.   (to move backward) …