noun
insertion; plugging in
General act of inserting something into a slot, socket, or opening; also used for inserting supplementary pages or materials into a publication.
電源の差し込みを確認してください。
Please check the power plug connection.
新聞に広告の差し込みがあった。
There was an advertising insert in the newspaper.
noun
Refers to the electrical plug itself or the socket/outlet; context usually makes the distinction clear.
この差し込みはコンセントに合わない。
This plug doesn't fit the outlet.
noun
Sudden, gripping pain, often in the abdomen or side; commonly used for a side stitch during exercise or intestinal cramps.
走っていると、わき腹に差し込みが起きた。
While running, I got a stitch in my side.
急に差し込みがあって、動けなくなった。
Suddenly a sharp pain hit me and I couldn't move.
Variant spelling with slightly reduced okurigana; less common but still seen.
コンセント specifically means an electrical outlet/socket, while 差し込み can refer to the plug, the act of plugging in, or the outlet depending on context.
プラグ is a direct loanword for an electrical plug; 差し込み is the native Japanese term that can mean plug, insertion, or outlet.
痙攣 is a medical term for convulsions or spasms, often involuntary muscle contractions; 差し込み is a more everyday term for a sudden sharp pain or stitch.
Noun form of the verb 差し込む (to insert, to plug in, to have a sudden pain). The pain sense likely derives from the sensation of something 'stabbing' or 'inserting' itself sharply.