Prefix used to indicate joint, mutual, or shared action or relationship. Common in compounds like 相部屋 (sharing a room) or 相乗り (riding together).
I ended up sharing a room with him.
We share a taxi.
compatibility; chemistry; affinity
partner; pal; accomplice
face-to-face; private; between the parties
partner; companion · partner for the night
coupled with; together with; combined with
follow one after another; occur in succession
sharing a table with a stranger
aizuchi; backchanneling; interjections showing attention · two smiths hammering in turn
ridesharing; sharing a ride; carpooling · doing together; collaborating; piggybacking
sharing a room; dormitory room · match between wrestlers from the same stable
simultaneous strike; mutual hit · draw; tie
be contrary; conflict; run counter to
one after another; in succession
sunset; dusk · evening bell; vespers bell
person who sits between host and guest of honor at a drinking party; companion at a drinking party
gap; space · good relationship
doing together · being equal; being on par
brother-in-law (husband of one's spouse's sister)
fellow guest; fellow lodger; fellow passenger
staying at the same inn; rooming together
the same age
Standard kanji spelling for this prefix.
The prefix 相 (あい) is derived from the verb 合う (あう, 'to meet, to fit together'), indicating mutual or joint action.