JMdict: 1513900

保線 【ほせん】

  1. [n] track maintenance
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Kanji in this word:

Kanji Meanings On Readings Kun Readings Grade
保 Protect, Guarantee, Keep, Preserve, Sustain, Support ホ, ホウ たも.つ 5
線 Line, Track セン すじ 2

Words often seen with this one: (experimental feature)

すみません (27), 手 (10)