This is the 4910th most frequent Japanese word.
発送
"発送" means "shipping" or "dispatch."
Here, '発送' is used as a noun meaning 'shipment,' referring to the act of sending items or goods.
商品の発送は来週の予定です。
The shipment of the goods is scheduled for next week.
In this example, '発送' is again a noun but combined with '開始しました' (began) to indicate the commencement of shipping.
会社は新しい配送方法を試すために発送を開始しました。
The company began shipment in order to test a new delivery method.
'発送' in this sentence acts as a verb used in the imperative form, requesting the action of shipping.