li‧tre  British English, 
liter American English /ˈliːtə $ -ər/
 noun1.  [countable] (
written abbreviation l) the basic unit for measuring liquid in the 
metric systemlitre of
 a litre of waterlitre bottle/drum/container etc
 a litre bottle of wine2.  2.6/3.5 etc litre engine a measurement that shows the size and power of a vehicle’s engine ⇒ 
cc: 
 the Ford’s 2.8 litre engine  [TahlilGaran] Dictionary of Contemporary English ▲