集體

collective (decision) / joint (effort) / a group / a team / en masse / as a group

to gather / to collect / collected works / classifier for sections of a TV series etc: episode

body / form / style / system / substance / to experience / aspect (linguistics)

collectivism

to do ensemble dancing / to dance in a group

collectivization of agriculture (under communism)

collectivization / to collectivize

mass grave

Collective Security Treaty Organization (CSTO)

gang rape

collective / joint household

collective economy

pedestrian group (e.g. of tourists etc)

(law) class action

collective protection

leadership group / collective of leaders

(official accolade) advanced team / exemplary group