Meanings

distribution center (centre)

ticket collector

condenser

class action

collectivism

ticket collection

meeting place

group wedding

fish-luring lights

apartment building

employment en masse (esp. of middle and high school graduates from the rural districts during Japan's post-war economic boom)

bill collector

concentrated fire

set theory

group medical examination

intensive farming

meeting and parting

universal set

swarm

collected waka poems (of a single poet)