慣わし

(1)a specific practice of long standing

(2)長年の特定の習慣

(3)a customary way of operation or behavior; "it is their practice to give annual raises"; "they changed their dietary pattern"

(4)活動や行動の習慣的な様式

(5)accepted or habitual practice

(6)受け入れられることまたは慣習