Phrasal verbs are an important feature of the English language. The meaning of a phrasal verb often bears no relation to the meaning of either the verb or the particle which is used with it. Many phrasal verbs have several different meanings.
Brush off (to remove dust or dirt from someone or something)
Brush the chair off before you sit down.
Brush off (refuse to listen to what someone says)
I wanted to apologise but she brushed me off.
Brush up (to practise and improve your skills)
Brush up on your French before visiting France.
Bubble over (to be very excited) I was bubbling over with enthusiasm when I got my first appointment.
Build around (to base something on something else)
Bryan’s new film is built around an incredible storyline.
Build in (to include something as part of a plan)
If you want your children to study hard, you have to build in a few incentives.
Build into (to make something so that it is a permanent part of a wall)
The bank has four cash machines built into the wall.
Build on (to base something on an idea) My relationship with him is built on trust.
Build up (If you build something up, it gradually becomes big)
He has built up a fine art collection.
Bump into (to meet someone you know without planning to meet them) I bumped into Xavier when I was out shopping in Colombo.
Bump off (to kill someone)
A hit-man was hired to bump off the serial-killer.
Bunch up (to move close together to make a tight group)
The children were all bunched up at the back of the auditorium.
Bundle off (to send someone somewhere very quickly) The child was bundled off to school.
Bundle up (to tie a group of things together) We bundled up some old clothes and gave them for charity.
Burn down (to destroy a building by fire) The protesters burnt down the police station.
Burn out (if a fire burns out, it stops burning) Leave the fire to burn out.
Burn up (to use a lot of fuel) My car burns up a lot of fuel.
Burst in (to enter a room suddenly without warning)
The door was flung open and a masked gunman burst in.
Burst out (to start to laugh or cry suddenly) Alice burst out laughing when she saw the comedian. Burst with (to have a lot of something) My boss was a young man bursting with energy.
Bury away (to use an article or news item in a place that is difficult to find) My poem was buried away in the feature pages.