軌道 (きどう)orbit; trajectory; railroad track

orbit; trajectorynoun (common) (futsuumeishi), nouns which may take the genitive case particle 'no'
railroad tracknoun (common) (futsuumeishi)
(right) track; proper coursenoun (common) (futsuumeishi)

軌道, its kanji, and other words that share them.Open this graph

Kanji in 軌道

軌跡きせきtire track
常軌じょうきnormal course (of action); proper course
不軌ふきlawlessness; violation of customs
中軌道ちゅうきどうICO; Intermediate Circular Orbit
人車軌道じんしゃきどうhandcar railroad; handcar railway
低軌道ていきどうlow orbit; low earth orbit
円軌道えんきどうcircular orbit
分子軌道ぶんしきどうmolecular orbital; MO
北海道ほっかいどうHokkaido (island, prefectural-level administrative unit)
報道ほうどうreport (of news); reporting
道みちroad; path
道路どうろroad; highway
都道府県とどうふけんprefectures (of Japan); largest administrative divisions of Japan: Tokyo-to, Osaka-fu, Kyoto-fu, Hokkaido and the remaining prefectures
鉄道てつどうrailroad; railway
報道陣ほうどうじんpress corps
柔道じゅうどうjudo

See how 軌道 connects to the rest of Japanese.