A partner, especially one half of a comedy duo (manzai); colloquially used for a companion or partner in various activities.
彼は有名な芸人の相方として知られている。
He is known as the partner of a famous comedian.
相方と息の合った漫才を披露した。
They performed a well-synchronized manzai with his partner.
練習は相方と一緒に毎日続けている。
He practices every day together with his partner.
A partner for the night (used in contexts such as brothels); a somewhat dated or colloquial usage.
昔の文献では『相方』がそのような意味で使われる例がある。
In older texts, 'aikata' is sometimes used in that sense.
店の客引きは相方を探すように勧めた（※やや俗な表現）。
The tout urged him to find a partner for the night (a somewhat vulgar expression).