(n) (math) secant method
(n) loop line
(transportation) belt line
(n) lines in operation
(n) water line (ship)
(n) long, beautiful legs
(n) backlight
(n) backlight
(n) feeder
(n) (comp) common channel
(n) party line
(n) boundary line
(n) power line
high current electrical line
(n) linear beauty
(n) polar front
(n) antenna
(n) chart
(n) barbed wire
(n) warning line
police cordon
(n) Geibi Line (Hiroshima-North Okayama Railway)
(n) goal line
(n) a catenary
(n) calibration curve
standard curve
(n) overpass
(n) music paper
(n) (music) score
(n) a ray gun
(exp) more or less right
you are on the right track
getting warm
(n) production line
(n) high-voltage wire
(n) (1) overhead wires
(2) elevated railway