(n) high-water mark
(n) border
(n) international air route
(n) domestic line
(n) foremost line
(P)
(n) an older railroad line
(n) cherry blossom front
(n) three-stringed Japanese guitar
shamisen
(n) three-stringed Japanese guitar
shamisen
(P)
(n) third-base line
(n) (comp) reference line
(n) front line of (trenches for) deployed soldiers
(n) the meridian
(n) ultra-violet rays
(P)
(n) line of magnetic force
(n) (col) sanshin (Okinawan traditional three-stringed instrument; precursor to the shamisen)
(n) weak electrical current line (e.g. intercom)
(n) (uk) (abbr) Japanese spirea (Spiraea Japonica)
(n) saturated linework
concentrated linework
(n) crosshairs
(n) (math) (obsc) evolute
(n) (comp) output line
(n) output-line
(n) loop line
belt line
(n) up line
in-bound line
(n) both (railway) tracks
(both) up and down tracks (lines)
(n) upswing
(n) rising curve
(n) ordinary ray
(n) (math) (obsc) involute