Noun has 3 senses

• waterloo(n = noun.location) - a town in central Belgium where in 1815 Napoleon met his final defeat;



• waterloo(n = noun.event) - a final crushing defeat; "he met his waterloo"


• waterloo(n = noun.act) battle of waterloo - the battle on 18 June 1815 in which Prussian and British forces under Blucher and the Duke of Wellington routed the French forces under Napoleon;