fellow traveler (US) noun
or British fellow traveller
plural fellow travelers
fellow traveler (US)
noun
or British fellow traveller
plural fellow travelers
Learner's definition of FELLOW TRAVELER
[count]
1
: someone who is traveling in the same group or on the same train, airplane, etc., as you旅伴 2
: someone who shares the opinions and beliefs of the people in a group or organization (especially the Communist Party) but does not belong to that group or organization同路人(某团体或组织的支持者,尤指赞同共产党观点、信仰的党外人)