軌道|きどうkidou[0]heiban (flat)

1. noun, astronomy, physicsorbit; trajectory
   その衛星えいせいは地球ちきゅうの軌道きどうを１０周しゅうした。↗

   The satellite made 10 orbits of the earth.
2. noun(railroad) track
3. noun(right) track; proper course

• Synonym軌跡きせきNeutralWheel ruts or the course a person or thing has traveled, as in 「人生の軌跡」; it stresses traces already left behind, while 「軌道」 is a set orbit or the right track.
• Related経路けいろNeutralThe route or channel something passes through, as in 「感染経路」; it focuses on which path is taken, while 「軌道」 covers orbits, rails, or the right track.
• RelatedコースNeutralA loanword for a route, course, or lane, as in 「コースを外れる」; 「軌道」 leans toward an orbit following set laws or the right track.
• RelatedルートNeutralA loanword for a route or channel, as in 「輸送ルート」; it centers on which way to go, while 「軌道」 is a fixed path like a celestial orbit or rails.
• Related針路しんろWrittenWritten/formal prose for the course of a ship or aircraft, also a figurative course of action; 「軌道」 is a moving object's path or rails, not a direction.
• RelatedラインNeutralA loanword for lines, strokes, or rows, as in 「スタートライン」; 「軌道」 specifically means an orbit, rails, or the right track.
• RelatedロードNeutralA loanword for a road, mostly in compounds like 「ロードバイク」, and also for loading data; 「軌道」 is a path of motion, not a road.
• Related進路しんろNeutralThe direction of travel or one's course after graduation, as in 「台風の進路」; 「軌道」 is a route following fixed laws, as in 「衛星軌道」.

Use 「軌道」 for the orbit of a celestial body or satellite, rails, or the figurative right track, as in 「軌道に乗る」. For traces already left behind pick 「軌跡」, for direction of travel or one's future course 「進路」, and for routes or channels 「ルート」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 物体ぶったいが一定いっていの法則ほうそくに従したがい描えがく道筋みちすじ。
2. 列車れっしゃなどが通とおる道みち。レール。
3. 物事ものごとが進行しんこうする一定いっていの方向ほうこう。安定あんていした生活せいかつや運営うんえいの継続けいぞく。