orbit noun
ADJ. circular, elliptical | eccentric Mercury's orbit is fairly eccentric. | stable | planetary
VERB + ORBIT enter, go into | put/send sth into | complete, make The spaceship made an orbit of the moon.
PREP. in ~ The satellite will remain in orbit for several years. | ~ around/round the moon's orbit around the earth
You can also check other dicts: orbit (English, 中文解释 ), wordnet sense, Collins Definition