en > eu 
/naɪt/
last night: bart gauean, bart arratsean
tomorrow night: bihar gauean
we spent the night with friends: gaua lagunartean igaro genuen
on Saturday night: larunbat gauean
all night (long): gau guztian
to stay up late at night: berandu oheratu, gaupasa egin
we decided to make a night of it and go to a club: parrandan segitzea pentsatu genuen eta dantzaleku batera joan ginen
to work nights: gauean lana egin
2 adj. gaueko; gau- (hitz-elkarteetan)
to have a night job: gaueko lana izan