being vendible, being in great demand, being current, being vendible, in great demand, or selling well (goods, implying a difficulty of sale)

the normal way to doing something

become a custom, be in vogue

to become customary, to become current

customary, usual, general

lingua franca, a mixed language which is a means of expression in different nations,

according to custom or practice, customarily

become prevalent, come in vogue, be in fashion

introduce, popularize

native customs

custom and usage, established practice, customs and traditions

customs and traditions of the world