弟

indirect pupil

affiliated company; sister company

people in the whole world being all brothers; universal brotherhood

a foolish older brother and a smart younger

second cousin

to quarrel among friends (or siblings)

Proverb

even siblings turn into strangers

young brother

Sumo

medical examination of entrants into professional wrestling

second cousin

third cousin

Idiomatic expression

both people are superb in skill (and thus it is hard to rank them)

Food, cooking

vegetables boiled in miso

first cousin once removed

Clusiaceae (family of plants including St. John's worts and mangosteens); Guttiferae

Hypericum (plant genus including St. John's worts)

Guttiferales (plant order)

parallel cousins; ortho-cousins

brothers

second cousin