賛同者(さんどうしゃ)

Composed of 賛同(さんどう) (agreement; approval of a proposal) + 者(しゃ) (person). A productive noun pattern: any 賛同(さんどう)する (to agree with; endorse) action has its corresponding 賛同者(さんどうしゃ).

Core usage

賛同者(さんどうしゃ) emphasizes public or recorded agreement with a specific proposal or cause, not just private approval. A person who quietly thinks a plan is good but does nothing about it is not typically called a 賛同者(さんどうしゃ). Signing a petition, donating to a campaign, speaking publicly in favor, or adding one's name to a list all qualify.

Common collocations

• 賛同者(さんどうしゃ)を募(つの)る: to solicit supporters
• 賛同者(さんどうしゃ)を集(あつ)める: to gather supporters
• 賛同者(さんどうしゃ)が増(ふ)える: the number of supporters grows
• 賛同者(さんどうしゃ)の数(かず): the number of supporters
• 賛同者(さんどうしゃ)になる: to become a supporter
• 賛同者(さんどうしゃ)一同(いちどう): all the supporters (as a group)

Related words

• 賛同(さんどう): agreement; endorsement (the act or attitude)
• 賛同(さんどう)する: to agree with; to endorse
• 賛成(さんせい): approval; agreement — a more general word for "agree" or "vote yes."
• 反対(はんたい)者(しゃ): opponent; person against the proposal (the antonym pattern)
• 支持者(しじしゃ): supporter (of a politician, idea, or cause) — a stronger, more enduring kind of support
• 協力(きょうりょく)者(しゃ): collaborator; cooperator — someone who actively helps, not just endorses

Similar words

• 賛同者(さんどうしゃ): specifically someone who endorses a proposal or cause.
• 支持者(しじしゃ): a supporter, especially of a politician or ongoing cause; implies more durable commitment.
• 賛成者(さんせいしゃ): someone who votes in favor; used in formal meetings and votes.
• ファン: fan — for entertainers, athletes, and popular figures rather than causes or proposals.

Usage

• Petitions and signature campaigns
• Crowdfunding and community projects
• Open letters and manifestos
• Policy debates and civic movements
• Environmental and social causes