barrel
noun /ˈbærəl/
  /ˈbærəl/
Idioms - a large round container, usually made of wood or metal, with flat ends and, usually, curved sides
- a beer/wine barrel
 - They filled the barrels with cider.
 - The art of barrel-making is an ancient skill.
 
Oxford Collocations Dictionaryadjective- beer
 - whisky/whiskey
 - wine
 - …
 
- fill
 
- contain something
 
- a barrel
 - per barrel
 - by the barrel
 - …
 
 - the contents of or the amount contained in a barrel; a unit of measurement in the oil industry equal to between 120 and 159 litres
- They got through two barrels of beer.
 - Oil prices fell to $9 a barrel.
 - Crude oil prices hit record highs of more than $70 a barrel.
 
Oxford Collocations Dictionaryadjective- beer
 - whisky/whiskey
 - wine
 - …
 
- fill
 
- contain something
 
- a barrel
 - per barrel
 - by the barrel
 - …
 
 - the part of a gun like a tube through which the bullets are fired
- Tom found himself looking down the barrel of a gun.
 - The barrel was aimed directly at me.
 - He fired one barrel and then fired again.
 
Extra Examples- I felt the gun barrel at my head.
 - Pulling his rifle to his shoulder he squinted along the barrel.
 
Oxford Collocations Dictionaryadjective- gun
 - rifle
 - shotgun
 - …
 
- look down
 - peer down
 
- point
 
- the barrel of a gun
 
 
Word OriginMiddle English: from Old French baril, from medieval Latin barriclus ‘small cask’.
Idioms 
a barrel of laughs 
- (informal, often ironic) a lot of fun
- Life hasn't exactly been a barrel of laughs lately.
 
 
be like shooting fish in a barrel 
- (informal) used to emphasize how easy it is to do something
- What do you mean you can't do it? It'll be like shooting fish in a barrel!
 
 
lock, stock and barrel 
- including everything
- He sold the business lock, stock and barrel.
 
 
(get/have somebody) over a barrel 
- (informal) (to put/have somebody) in a situation in which they must accept or do what you want
- They've got us over a barrel. Either we agree to their terms or we lose the money.
 
 
scrape (the bottom of) the barrel 
- (disapproving) to have to use things or people that are not the best or most suitable because the ones that were the best or most suitable are no longer available