1. (尤指共患难的)朋友
Your comrades are your friends, especially friends that you share a difficult or dangerous situation with.

2. 同志(社会主义者或共产主义者之间的称呼，尤其在会议中)
Socialists or communists sometimes call each other comrade, especially in meetings.

1. used as a term of address for those male persons engaged in the same movement

e.g. Greetings, comrade!

Synonym: brother

2. a friend who is frequently in the company of another

e.g. drinking companions
comrades in arms

Synonym: companionfellowfamiliarassociate