source: Charging | Anime Amino

1. a natural or artificial hollow into which something fits or in which something revolves:

〘解剖〙 (目･関節などの)窩（か）

e.g. the eye socket.

the part of the head of a golf club into which the shaft is fitted.

2. an electrical device receiving a plug or light bulb to make a connection.

(電気プラグの)差し込み口, (壁などの)コンセント(｟英｠ power point, ｟米｠ outlet); (電球などの)ソケット

verb (sockets, socketing, socketed) with object

1. place in or fit with a socket.

…をソケットに差し込む.

2. Golf old-fashioned term for shank.

〘ゴルフ〙 〈ボール〉をクラブのヒールで打つ(shank)

Middle English (in the sense ‘head of a spear, resembling a plowshare’): from an Anglo-Norman French diminutive of Old French soc ‘plowshare’, probably of Celtic origin.