proponent

Compared meaning: a person who supports an idea, cause or method (noun).

比较义项：支持某种主张、事业或做法的人（名词）。

• advocate

  Emphasizes actively campaigning or speaking out for a cause, often publicly or professionally, and typically collocates with 'for' plus the cause.

  强调为某项事业公开、积极地奔走呼吁，常与介词“for”搭配，后接所支持的事业。

  The lawyer became a vocal advocate for refugee rights.

  这位律师成为难民权利的积极倡导者。

• proponent 本词

  Highlights someone who supports and argues for an idea, plan or policy using reasoning, common in formal or political contexts, usually with 'of'.

  强调以理据支持并论证某种主张、方案或政策，常见于正式或政治语境，通常与介词“of”搭配。

  He is a strong proponent of stricter environmental regulations.

  他是更严格环保法规的坚定支持者。

• exponent

  Refers to someone who practices, demonstrates and explains an art, method or skill, promoting it through their own work, often used with 'leading' before an art form or discipline.

  指通过亲身实践、示范和讲解来推广某种技艺、方法或学说的人，常与“leading”连用，置于艺术形式或学科名称之前。

  She is one of the leading exponents of contemporary jazz piano.

  她是当代爵士钢琴的杰出代表人物之一。

Advocate, proponent and exponent all mean a supporter, but with different focus. Advocate stresses publicly campaigning for a cause, usually with 'for'. Proponent stresses supporting an idea with reasoning, common in formal or political writing. Exponent stresses practicing a skill through their own work.

这三个词都可指“支持者”，但侧重点不同：advocate 强调为某项事业公开奔走呼吁，proponent 强调以理据支持某种主张或方案，exponent 强调通过亲身实践和示范来推广某种技艺或方法。这里不比较 advocate 作动词“提倡，主张”的用法，也不比较 exponent 在数学中“指数”的义项。