luokkakaveri

ahkera

diligent; hard-working

äidinkieli

mother tongue, native language (school subject)

opinto

studies (usually plural: opinnot)

lukio

upper secondary school, sixth form college

luokka

classroom; class (group of pupils)

kurssi

course

tenttiä

to take an exam, to be examined

koulupäivä

school day