lager UK /ˈlɑːɡə/US /ˈlɑɡɚ/noun 1verb 1forms 3 noun1 •A type of beer, brewed using a bottom-fermenting yeast.The 40-year-old [Mike Skinner] is happy to put his body on the line in other ways, swapping a mug of tea for a fan's double pint of lager and messily necking it in one. — 2019 verb1 •To store (lager beer) at a low temperature for maturing and clarification. formslagered · lagering · lagers