standard

Compared meaning: the normal, non-special version of something (adjective).

比较义项：标准的，普通常备、非特别定制的（形容词）。

• standard 本词

  The neutral, all-purpose word for the normal or default version of something, with no special connotation; used for sizes, procedures, equipment.

  中性、通用度最高的词，指某物“普通、默认”的版本，没有特殊含义；常用于尺寸、流程、设备等场合。

  This model comes with standard features; extras cost more.

  这款车型配备标准配置；额外功能需要加钱购买。

• stock

  Implies something mass-produced or routinely kept ready-made, often with a slightly negative sense of unoriginal or overused, as in a stock answer.

  强调某物是批量生产或现成常备的，常带一点“老套、缺乏新意”的负面意味，例如stock answer（套话）。

  The customer service rep gave the same stock answer to every complaint.

  客服人员对每一个投诉都给出同样的套话式回答。

• regular

  Common in everyday contexts like food or drink sizes to mean the normal, non-special option, as opposed to large or deluxe.

  常用于食品、饮品、服装尺码等日常场景，指“普通、非特殊”的选项，与“大份”或“豪华版”相对。

  I always order a regular coffee, not the large size.

  我总是点普通杯的咖啡，不要大杯的。

Standard, stock, and regular can describe the normal, non-special version of something. Standard is the neutral, all-purpose word, used for sizes or equipment. Stock implies something mass-produced, with a negative, unoriginal sense. Regular is common for food or drink sizes. Other senses are not compared.

这三个词都能形容某物是“普通、标准”的版本，但语气和搭配不同：standard最中性、适用范围最广；stock强调“现成、批量提供”，有时带“老套、缺乏新意”的贬义；regular多用于食品、饮品、服装尺码等日常场景。这里不比较standard表示“水平、质量”的名词用法（如high standard of service），也不比较regular表示“有规律地、定期地”的用法（如take a regular walk）。

Compared meaning: ordinary, not special or outstanding (adjective).

比较义项：普通、一般、不特别、不出众（形容词）。

• average

  Average describes something at the typical middle level, often implying it is unremarkable or mediocre rather than especially good or bad.

  average强调处于典型的中等水平，常暗示平平无奇、并不出众，而不评判绝对的好坏。

  Her cooking skills are average — not bad, but nothing impressive either.

  她的厨艺很一般——不差，但也没什么出彩之处。

• common

  Common emphasizes that something happens often or is widely shared among people, without saying anything about its quality or level.

  common强调某事经常发生或被许多人共同经历，并不评价其水平高低。

  Traffic jams are common in this city during rush hour.

  在这座城市，高峰期堵车很常见。

• standard 本词

  Standard describes something that matches the usual, basic version or specification, often contrasted with a premium or deluxe option.

  standard指符合通常的、基本的规格或版本，常与高级／豪华选项相对。

  We booked the standard room, not the deluxe suite with a sea view.

  我们订的是标准间，不是带海景的豪华套房。

Average, common, and standard can all mean ordinary, not special. Average describes something at a typical level, suggesting it is mediocre. Common means something happens often or is widely shared. Standard means matching the usual, basic version, unlike a premium option. Other senses aren't compared.

这三个词都可以表示“普通、一般、不特别”，但语气和用法不同：average强调处于平均、典型的水平，常带有“平平无奇”的意味；common强调普遍存在、经常发生；standard强调符合基本规格或标准配置，常与高级／豪华选项相对。这里不比较common表示“共同的、公共的”的义项（如a common language），也不比较standard作名词表示“标准、水平”的用法（如a high standard of service），也不比较average表示数学平均值的用法（如the average score）。

Compared meaning: a measure used to judge something (noun).

比较义项：标准，准则（名词）。

• standard 本词

  Refers to a level of quality or achievement something is measured against; often used with 'high/low' and verbs like 'meet' or 'raise'.

  指用来衡量事物的“质量水平”，常与“高／低”搭配，也常与“达到”“提高”等动词连用。

  The hotel offers a high standard of service to guests.

  这家酒店为客人提供高标准的服务。

• criterion

  Refers to a specific condition or requirement used to judge or decide something, often one of several; common in formal or evaluative contexts like hiring or grading.

  指用来判断或做出决定的具体条件或依据，常常是多个条件之一，多见于招聘、评分等正式评判场合。

  The main criterion for the job is strong communication skills.

  这份工作的主要标准是良好的沟通能力。

Standard and criterion both mean a measure used to judge something. Standard refers to a level of quality something must reach, often with verbs like 'meet' or 'raise'. Criterion refers to one specific condition used to judge or decide something, often one of several.

两者都指用来衡量或判断事物的标准，但 standard 强调达到的“质量水平”，可以被“达到”或“提高”；criterion 更强调用来“做判断或决定”的具体依据或条件，常用于筛选、评判的场合。