go (for a specific purpose, for example) / Short for 参議院 (Sangiin): the House of Councillors (upper house of the Diet) / check, verify / add, increase, join (a group, etc.)

a surname / (Chinese astronomy, rare) the Three Stars constellation, one of the Twenty-Eight Mansions

a calling, coming / (Zen Buddhism) a gathering of Zen members in meditation, preaching, and invocation

Short for 三河国 (Mikawa-no-kuni): Mikawa Province / Alternative spelling of 三 (san): 3, three

(law) Financial form of 三 (san): 3, three

cunning; crafty / greedy

a foundation stone

pour / sprinkle / wash / purify / be clean/refreshed

Nissan, the car company

(Chūgoku, Shikoku, Kyūshū) because, since, so: presents the preceding clause as the reason for the following clause