The Inner Path; a term derived from the Sanskrit referring to any orthodox Buddhist doctrine which "treads the inner path" to enlightenment.

conductor (something which can transmit electricity, heat, light or sound)

the inside of prefecture of Japan which is suffixed "道" (Dō) / the inside of Hokkaido

(obsolete) tunnel

flue

diversion; deceptive action used to distract someone

evil path

geocentrism

(competition) having the same amount of points

same boat / riding on the same boat