lagerEnglishOxford New American Dictionarylager /ˈläɡər, ˈlɑɡər / ▸ noun a kind of beer, effervescent and light in color and body: a sought-after brand of lager [count noun] the English habit of sinking a few post-match lagers a free house with a wide range of lagers. – ORIGIN mid 19th century : from German Lagerbier ‘beer brewed for keeping’, from Lager ‘storehouse’. Compare with laager, lair1.