ichidan verb, transitive verb
purchase; buy in; stock up on
Often used for buying goods in quantity, especially for business or institutional use, rather than personal shopping.
来月のイベントのために、文房具をまとめて買い入れた。
We purchased stationery in bulk for next month's event.
この店では、地元の農家から野菜を直接買い入れている。
This shop buys vegetables directly from local farmers.