superior

Compared meaning: high in rank or status (adjective).

比较义项：地位或职务上等级较高（形容词）。

• high

  The most general, common word for rank; can stand alone or form compounds like 'high-ranking', and fits everyday speech about status, position or office.

  最通用、最常见的表示等级高的词，可单独使用，也可构成high-ranking等复合词，在日常口语中描述身份、职位或职务都很自然。

  She was promoted to a high-ranking position in the government.

  她被提拔到政府中一个高级职位。

• upper

  Used only before a noun, never alone, in fixed phrases naming a level within a structured hierarchy, such as 'upper management' or 'upper class'; formal, institutional tone.

  只能放在名词前面，不能单独使用，常用于upper management（高层管理）、upper class（上层阶级）等固定搭配，指等级体系中的某一层级，语气较正式、带机构色彩。

  Decisions like this are usually made by upper management, not regular staff.

  这样的决定通常是由高层管理人员做出的，而不是普通员工。

• superior 本词

  Describes someone directly above another in a chain of command; often used as a noun ('my superior') or in 'superior officer'; formal workplace or military register.

  表示在指挥系统中直接高于某人的上级，常作名词使用（如my superior意为“我的上级”），或用于superior officer（上级军官），属正式的职场或军队用语。

  A soldier must always follow orders given by a superior officer.

  士兵必须始终服从上级军官下达的命令。

High, upper, and superior all mean high in rank, but usage differs. High is general, used freely or as 'high-ranking'. Upper appears only before a noun, as in 'upper management'. Superior is formal. It excludes high as 'tall' and superior as 'better quality'.

这三个词都可以表示“等级或地位较高”，但语域和搭配不同：high最通用，可自由修饰名词或构成high-ranking等短语；upper只能放在名词前，常见于upper management、upper class等固定搭配；superior语气正式，常作“上级”讲，也可用于superior officer。这里不比较high表示“（物理）高度”的义项，也不比较superior表示“品质更优越”的义项。

Compared meaning: excellent, high quality (adjective).

比较义项：优秀的、上等的（形容词，指品质好）。

• superior 本词

  Superior means better than others in direct comparison; it applies to concrete products as well as abstract things like ability or performance, and often pairs with 'to'.

  superior 表示经过比较后“更优、更好”；它既可用于具体的产品，也可用于能力、表现等抽象事物，常与“to”搭配。

  This laptop's screen is superior to any other model in its price range.

  这台笔记本电脑的屏幕比同价位的其他型号都更优秀。

• choice

  Choice describes select, top-grade physical goods, especially food or materials; it rarely describes abstract things like skill or performance, and often appears in set phrases like 'choice cuts'.

  choice 用来描述精选、上等的实物，尤其是食材或原料；它很少用来形容技能、表现等抽象事物，常出现在“choice cuts”这类固定搭配中。

  The butcher only sells choice cuts of beef from local farms.

  这位肉贩只出售本地农场出产的上等牛肉。

Superior and choice both mean good quality, but superior means better by comparison, used for products, ability, or results, while choice means top-grade physical goods, especially food, rarely used for abstract things. This does not compare superior as 'a boss' or choice as 'a decision'.

这两个词在“品质好”这一义项上意思相近，但用法差别较大：superior 强调经比较后“更好、更优”，可用于产品、能力、结果等具体或抽象的事物；choice 则多用于食材、货物等实物，表示“精选的、上等的”，很少用于抽象事物。这里不比较 superior 作名词“上级”的用法，也不比较 choice 作名词“选择”的用法（词库例句中的 choice 正是这个未被比较的名词义）。