What does 亲家 (qìngjia) mean in English?

Card 43PCR Level 5643/64
CARD43
PROGRESS67%
亲家
親家
qìngjia
parents of one's daughter-in-law or son-in-law, relatives by marriage

Reveal: Click/Space/Enter/↑↓/w/s/j/kNavigate: ←→/h/l/a/d