orbit

American  

[awr-bit] / ˈɔr bɪt /

noun

1. the curved path, usually elliptical, taken by a planet, satellite, spaceship, etc., around a celestial body, as the sun.

2. the usual course of one's life or range of one's activities.

3. the sphere of power or influence, as of a nation or person.

   a small nation in the Russian orbit.

4. Physics. (in theBohr model ) the path traced by an electron revolving around the nucleus of an atom.

5. an orb or sphere.

6. Anatomy.

   1. the bony cavity of the skull that contains the eye; eye socket.

   2. the eye.

7. Zoology. the part surrounding the eye of a bird or insect.

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verb (used with object)

orbits, present (3rd person singular) orbited, past participle, past orbiting present participle

1. to move or travel around in an orbital or elliptical path.

   The earth orbits the sun once every 365.25 days.

2. to send into orbit, as a satellite.

verb (used without object)

orbits, present (3rd person singular) orbited, past participle, past orbiting present participle

1. to go or travel in an orbit.

orbit British  

/ ˈɔːbɪt /

noun

1. astronomy the curved path, usually elliptical, followed by a planet, satellite, comet, etc, in its motion around another celestial body under the influence of gravitation

2. a range or field of action or influence; sphere

   he is out of my orbit

3. Nontechnical name: eye socket.  anatomy the bony cavity containing the eyeball

4. zoology

   1. the skin surrounding the eye of a bird

   2. the hollow in which lies the eye or eyestalk of an insect or other arthropod

5. physics the path of an electron in its motion around the nucleus of an atom

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verb

1. to move around (a body) in a curved path, usually circular or elliptical

2. (tr) to send (a satellite, spacecraft, etc) into orbit

3. (intr) to move in or as if in an orbit

orbit Scientific  

/ ôr′bĭt /

1. The path followed by a celestial body or artificial satellite as it revolves around another body due to the force of gravity. Orbits are nearly elliptical or circular in shape and are very closely approximated by Kepler's laws of planetary motion.

2. One complete revolution of such a body.

3. See Note at solar system

4. A stable quantum state of an electron (or other particle) in motion around an atomic nucleus.

5. See more at orbital

6. Either of two bony hollows in the skull containing the eye and its associated structures.

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1. To move in an orbit around another body.

2. To put into an orbit, as a satellite is put into orbit around the Earth.

orbit Cultural  

1. In astronomy, the path followed by an object revolving around another object, under the influence of gravitation (see satellite). In physics, the path followed by an electron within an atom. The planets follow elliptical orbits around the sun (see ellipse).

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orbit Idioms  

1. see in orbit.

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Discover More

Informally, something is “in orbit” when its actions are controlled by an external agency or force: “The countries of eastern Europe were once in the orbit of the Soviet Union.”

Other Word Forms

Derived Forms

• orbitary
  adjective
• nonorbiting
  adjective

Conjugated Forms

Present

• have orbited
  perfect
• has orbited
  perfect 3rd person singular
• has been orbiting
  perfect progressive 3rd person singular
• am orbiting
  progressive 1st person singular
• have been orbiting
  perfect progressive
• is orbiting
  progressive 3rd person singular
• are orbiting
  progressive
• orbits
  singular 3rd person
• orbiting
  participle

Past

• had orbited
  perfect
• had been orbiting
  perfect progressive
• was orbiting
  progressive singular
• were orbiting
  progressive plural
• orbited
  simple
• orbited
  participle

Future

• will orbit
  simple
• will be orbiting
  progressive
• will have orbited
  perfect
• will have been orbiting
  perfect progressive

Etymology

Origin of orbit

1350–1400; Middle English < Latin orbita wheel track, course, circuit

Explanation

To orbit is to follow a circular or elliptical path around a central body. Usually a planet, moon or satellite is described as orbiting, but a child who has too much sugar can sometimes orbit around his parents in an annoying fashion. Orbit comes from the Latin orbita, “course,” or “track.” The verb orbit is the act of revolving around another object, usually on a circular or elliptical course. Many planets, moons, stars, meteors spacecraft and other objects in outer space orbit around each other. Electrons also orbit around the nucleus of an atom. The noun orbit is the path the object in orbit takes: "The Earth’s orbit around the Sun takes one year to complete."

Example Sentences

Labelled as planet X, prominent astronomers had put it forward as an explanation for Uranus’s orbit, which drifts from the path of orbital motion that physics would expect it to follow.

From Science Daily • Jun. 9, 2026

Getting more satellites into low-Earth orbit is critical for AST SpaceMobile, which is working on developing a service rivaling SpaceX’s Starlink, among other competitors.

From MarketWatch • Jun. 9, 2026

Artemis III changed from being an historic, crewed Moon landing to a technology test in Earth orbit because of delays to Elon Musk's SpaceX's Starship rocket.

From BBC • Jun. 9, 2026

The White House wants to put nuclear propulsion systems into orbit as soon as 2028.

From The Wall Street Journal • Jun. 9, 2026

Her complexion is so absorbing, it’s impossible not to be pulled into its orbit.

From "Split the Sky" by Marie Arnold

Related Words

• path
• pattern
• rotation
• trajectory