noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   travel through or into space uncountable
2. 2
   a voyage outside the Earth's atmosphere wordnet

Synonyms

All synonyms

spaceflightaerospace scienceastronauticscosmic travelgrand tourinterplanetary travel

Antonyms

All antonyms

earthbound travelground travelinactivityterrestrial travel