liqueur
spirits that have been sweetened and flavoured
sommelier
a wine steward; specialist
teetotaller
a person who never drinks alcohol
mocktails / virgin cocktails
a variety of non-alcoholic drinks / non-alcoholic versions of classic cocktails
sober
not drunk
hangover
the unpleasant physical effects following heavy drinking
tipsy
slightly drunk
spirits
distilled alcoholic beverages with a high alcohol content
intoxicated
very drunk