to trace (something already written or drawn); to copy / to trace (with the finger)

assortment of products

red line / (historical) Short for 赤線地帯(あかせんちたい) (akasenchitai): Akasen (districts in Japan where prostitution and the sex industry flourished)

line / level / beam

tilde; over-line

the above / the top (position or direction) / the surface of / superior in skill, age, level, etc.

in addition; furthermore / on top of (which)

a map (visual representation of an area)

赤, 朱, 紅, 緋: (colour) red (reddish), scarlet, crimson, vermilion (vermeil), cinnabar, ruby-red (rubeus), cherry-red, cerise, cardinal-red, carmine, wine-red, claret-red, blood-red (sanguine), coral-red, cochineal-red, rose-red (rosy, damask), brick-red, maroon, rust-red (rusty), rufous-red, gules-red, rufescent, auburn, russet.

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend