1.
collaborator; cooperator; supporter
A person who provides assistance or works together with others toward a common goal.
研究の協力者を募集している。
We are recruiting collaborators for the research.
多くの協力者のおかげで成功した。
It succeeded thanks to many supporters.
警察は事件解決のために地域の協力者から情報を集めた。
The police gathered information from local cooperators to solve the case.
Composed of 協力 (cooperation) + 者 (person). Used in academic, investigative, and organizational contexts to describe someone who contributes effort or information.
COMMON COLLOCATIONS:
- 協力者を募る — recruit cooperators
- 協力者を求める — seek collaborators
- 内部協力者 — insider collaborator, informant
- 調査協力者 — research participant/collaborator
SIMILAR WORDS:
- 共同研究者 — co-researcher; more specifically academic, implying equal partnership
- 支援者 — supporter; emphasizes providing aid, often financial or logistical
- 仲間 — companion, ally; more informal and implies a personal bond