连襟

husbands of sisters / brothers-in-law / extremely close (of a relationship)

surname Lian

to link / to join / to connect / continuously / in succession / including / (used with 也[ye3], 都[dou1] etc) even / company (military)

lapel / overlap of Chinese gown / fig. bosom (the seat of emotions) / to cherish (ambition, desires, honorable intentions etc) in one's bosom