inner

Compared meaning: located on the inside (adjective).

比较义项：内部的（形容词）。

• internal

  Formal and literal; describes the physical inside of a body, organ, machine, or system, as in medical or technical contexts; rarely used for feelings.

  较为正式、字面化；用于描述身体、器官、机器或系统等具体内部结构，常见于医学或技术语境；很少用来表达情感。

  The x-ray showed internal bleeding near her ribs.

  X光显示她肋骨附近有内出血。

• inner 本词

  Often abstract or psychological, describing thoughts, feelings, or character; can also mean physically closer to the center, as in fixed phrases like “inner voice” or “inner ear”.

  常用于抽象或心理层面，描述想法、情感或性格；也可指位置上更靠近中心，常见于固定搭配如“inner voice”（内心的声音）或“inner ear”（内耳）。

  She listened to her inner voice before making the big decision.

  在做出重大决定之前，她倾听了自己内心的声音。

Internal and inner both mean 'on the inside'. Internal is formal, used for the physical inside of a body, machine, or organization. Inner is often about feelings or thoughts, or means closer to the center, as in 'inner voice' or 'inner ear'.

这两个词都可表示“内部的”，但internal多用于身体、机器或组织等具体结构的内部，语气较正式、客观；inner更常用于抽象或心理层面的“内心”，也可指位置上更靠近中心。二者语域和常见搭配不同，中国学生容易混用。

Compared meaning: about a person's inner feelings (adjective).

比较义项：内心的（形容词）。

• inner 本词

  A purely attributive adjective placed before a noun (inner voice, inner peace, inner self); neutral and very common in everyday speech, naming an internal quality rather than any change or tendency.

  纯粹作定语形容词，用在名词前（如inner voice、inner peace、inner self）；语气中性，日常口语中很常见，描述的是一种内在的性质，而不是某种转变或倾向。

  Her inner strength helped her stay calm during the crisis.

  她的内心力量让她在危机中保持了镇定。

• inward

  Often describes a person turning their attention toward their own thoughts and feelings, suggesting introspection or emotional withdrawal; common in phrases like turn inward or become inward, with a slightly literary tone.

  常用来描述一个人把注意力转向自己的内心，暗示内省或在情感上有所封闭；常见于turn inward、become inward这类说法，语气略带文学色彩。

  After the divorce, he became more inward and stopped confiding in friends.

  离婚后，他变得更加内敛，不再向朋友倾诉心事。

Inner and inward both relate to inner feelings. Inner is a plain adjective before a noun, as in inner voice, inner peace, or inner self; neutral and common. Inward describes turning one's attention to one's own thoughts and feelings, as in 'turn inward'; slightly literary.

inner和inward在“内心的”这一意义上很接近，但用法不同：inner是纯粹的定语形容词，只能放在名词前，常与voice、peace、self等词搭配，语气中性、日常口语常用；inward则常用来描述一个人把注意力转向内心、变得内省或不愿对外表露情感，常见于turn inward、become inward这类说法，语气略带文学色彩。