Here are some options depending on the context:
Formal and Political:
* Kapwa mamamayan (fellow citizen): This emphasizes shared citizenship and community.
* Kapatid sa pakikibaka (brother/sister in struggle): This implies a shared fight for a common cause, often political.
Informal and Social:
* Kaibigan (friend): This is the most common and neutral term.
* Kapatid (brother/sister): This is a more affectionate term, implying closeness.
* Pare/Pareho (buddy): This is a casual term used between friends.
More Specific Terms:
* Ka-rebolusyonaryo (comrade in revolution): This emphasizes a shared revolutionary goal.
* Kabayani (hero/heroine): This implies a shared dedication to a noble cause.
Ultimately, the best translation depends on the specific context and the intended meaning.