Alphabetical List – B


افعال مرکبی که با حرف B شروع می شوند.
Phrasal Verb Meaning Example
back away Move backwards, in fear or dislike When he saw the dog, he backed away.
back down Withdraw; concede defeat. Local authorities backed down on their plans to demolish the cinema.
back up 1) Give support or encouragement

2) make a copy of (file, program…)

1) If I tell the boss we’ve got too much work, will you back me up?
2) It is recommended to back up all files.
bail out 1) Pay money to secure someone’s release

2) Rescue from financial difficulties

1) When he was arrested, his family refused to bail him out.
2) The government bailed out the bank.
bank on Base your hopes on something/someone. Don’t forget the date. I’m banking on your help.
beef up Improve or make more substantial He beefed up his presentation with diagrams and statistics.
black out Faint; lose consciousness When he fell off the horse, he blacked out.
block off Separate using a barrier. The area was blocked off during the demonstration.
blow up 1) Explode.

2) Be destroyed by an explosion.

1) The terrorists said the bomb wouldblow up at 9 o’clock.
2) The car blew up but luckily there was nobody in it.
boil down to Be summarized as The problem boils down to a lack of money.
boot up  Start a computer by loading an operating system or program. Just give me a few minutes to boot up the computer.
break away Escape from captivity. A few horses broke away from the paddock.
break down 1) Go out of order, cease to function.

2) Lose control of one’s emotions.

1) John’s car broke down on the way to the airport.
2) The parents broke down when they heard the bad news.
break into Enter by force. The burglars broke into the house around midnight.
break off 1) Stop, discontinue

2) Stop speaking

1) It was decided to break off diplomatic relations with that country.
2) She broke off in the middle of a sentence.
break out Start suddenly. Riioting broke out as a result of the strike.
break out of Escape from a place by force. Three prisoners broke out of jail.
break up Come to an end (marriage, relationship…) After her marriage broke up, Emma went to live in London.
bring up Raise (a child). She stopped working in order to bring upher children.
brush up on Improve, refresh one’s knowledge of something. Mary decided to brush up on her Spanish before going to South-America.
bump into Meet by accident or unexpectedly. Pedro bumped into his English teacher at the supermarket.
burn out 1) Stop (something) working

2) Become exhausted from overworking

1) The fuse has burnt out.
2) Tom will burn himself out if he doesn’t slow down.
butt in (on) Interrupt impolitely. It’s rude to butt in on a conversation.


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