留 - detain, fasten, halt

stop (bus, tram, etc.); station; stopping place

to stop; to stay (e.g. the night); to cease; to put an end to

remaining in office; staying in office; remaining at one's post

internment; detainment; detention

general delivery; counter collection; poste restante

police cell; place of detention; jail

registered mail; registered post; registration (of mail)

repeating a year (at school); staying in the same class for another year

studying abroad

reserving; withholding

karuta; traditional Japanese playing cards, esp. hyakunin isshu karuta or iroha karuta

care-taking; house-sitting; house-watching; staying at home