thought

Compared meaning: a thought or plan in the mind (noun).

比较义项：想法、念头（n.）。

• idea

  Idea usually names a specific formed plan, suggestion or solution - often called good, great, brilliant or terrible - and pairs with verbs like 'have', 'come up with' or 'suggest'.

  idea通常指一个具体成形的计划、建议或解决方案，常用good、great、brilliant、terrible等词修饰，也常与have、come up with、suggest等动词搭配使用。

  She came up with a clever idea to raise money for the animal shelter.

  她想出了一个聪明的主意，为动物收容所筹集资金。

• thought 本词

  Thought often describes a spontaneous mental occurrence with an emotional or nagging quality (a troubling, strange or sudden thought), rather than a deliberately formed plan.

  thought常用来描述突然浮现、带有情绪色彩的念头（如troubling、strange、sudden等修饰的thought），而不是刻意形成的计划，这一点与idea不同。

  A troubling thought kept nagging at her all afternoon.

  一个令人不安的想法整个下午都困扰着她。

Idea and thought both name something in the mind. Idea usually means a specific, clear plan or suggestion, often called good or great. Thought describes a sudden or emotional notion, not a deliberate plan. No idea and a thoughtful gesture are other meanings, not compared.

idea和thought在“想法”这个意义上很接近，都指头脑中形成的想法，但语气和用法略有不同：idea多指一个具体、成形、有目的的主意或方案，thought更强调偶然浮现或带有情绪色彩的念头。这里不比较idea表示“完全不知道”（no idea）或thought表示“体贴、关心”（a thoughtful gesture）等其他意义。

Compared meaning: the act or process of thinking (noun).

比较义项：思考的行为或过程（名词）。

• thought 本词

  Thought highlights a general mental act, often in set phrases like 'deep in thought' or 'a moment of thought'; it feels more reflective and is rarely modified by adjectives describing reasoning quality.

  thought 强调一次泛指的思考行为，常出现在固定搭配中，如“a moment of thought”（沉思片刻）或“deep in thought”（陷入沉思）；语气更偏内省，很少与描述推理质量的形容词搭配。

  After a moment of thought, she quietly gave her answer.

  沉思片刻后，她静静地给出了答案。

• thinking

  Thinking highlights the ongoing process or style of reasoning, often modified by adjectives like 'clear' or 'critical', and can mean someone's personal view, as in 'my thinking on this'.

  thinking 强调持续进行的思考过程或思维方式，常与“clear”（清晰的）、“critical”（批判性的）等形容词连用，也可表示某人的个人看法，如“my thinking on this”（我对此事的看法）。

  Please explain your thinking before you answer the question.

  请在回答问题之前先说明你的思路。

Thought and thinking both relate to mental activity. Thought often appears in phrases like deep in thought, meaning a moment of reflection. Thinking means an ongoing process of reasoning, as in clear or critical thinking. Thought's other meaning, a single idea, is not compared.

这两个词在“思考”这一义项上意义相近，但语气和用法有别：thought 常用于固定搭配（如“a moment of thought”“沉思片刻”、“deep in thought”“陷入沉思”），强调一次思考的行为或沉思的状态；thinking 强调持续进行的思考过程或思维方式，常与表示推理质量的形容词连用（如“clear thinking”“清晰的思路”、“critical thinking”“批判性思维”）。这里不比较 thought 表示“一个具体想法”的义项（如 I have a thought to share，“我有个想法要分享”）。