Alphabetical List – B


افعال مرکبی که با حرف B شروع می شوند.
Phrasal VerbMeaningExample
back awayMove backwards, in fear or dislikeWhen he saw the dog, he backed away.
back downWithdraw; concede defeat.Local authorities backed down on their plans to demolish the cinema.
back up1) 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 out1) 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 onBase your hopes on something/someone.Don’t forget the date. I’m banking on your help.
beef upImprove or make more substantialHe beefed up his presentation with diagrams and statistics.
black outFaint; lose consciousnessWhen he fell off the horse, he blacked out.
block offSeparate using a barrier.The area was blocked off during the demonstration.
blow up1) 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 toBe summarized asThe 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 awayEscape from captivity.A few horses broke away from the paddock.
break down1) 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 intoEnter by force.The burglars broke into the house around midnight.
break off1) 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 outStart suddenly.Riioting broke out as a result of the strike.
break out ofEscape from a place by force.Three prisoners broke out of jail.
break upCome to an end (marriage, relationship…)After her marriage broke up, Emma went to live in London.
bring upRaise (a child).She stopped working in order to bring upher children.
brush up onImprove, refresh one’s knowledge of something.Mary decided to brush up on her Spanish before going to South-America.
bump intoMeet by accident or unexpectedly.Pedro bumped into his English teacher at the supermarket.
burn out1) 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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