Kanji 込 crowded, mixture, in bulk Related words 側そく 線せん 側線 is a general railway siding, while 引き込み線 often implies a spur leading into a specific facility or a utility service line.
引ひき 込こみ 線せん Same word, but written with less okurigana; see written forms above.
Written forms 引ひ き 込こ み 線せん
Standard kanji spelling with okurigana; preferred in news and formal contexts.
引ひき 込こ み 線せん
Variant with reduced okurigana; less common but still seen.
引ひき 込こみ 線せん
Abbreviated kanji form without okurigana; mostly found in older or technical documents.
Etymology Compound of 引き込み (pulling in, drawing in) + 線 (line). The term originally described a track or wire that is 'drawn in' to a building or site.
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