railgun (electromagnetic gun)

rail (railroad track, train track) / rail, track (guide for a curtain or door) / early preparations for the smooth progress of something

light rail

(slang) (before a verbal noun) Used to intensify a verb.

gun, a very portable, short weapon, for hand use

(onomatopoeia) thud, the sound of something being hit

cap gun, toy gun

Synonym of 機関銃 (kikanjū, “machine gun”)

(informal) to read intently

(informal) intently reading