upright

Compared meaning: morally right or good (adjective).

比较义项：道德上正直、正确的（形容词）。

• good

  The most basic, everyday word for morally right; used for people, actions, or causes without specifying fairness or the strength of feeling involved.

  最基础、最日常的表示“道德上正确”的词，用于人、行为或事业，不特别强调公正性或情感强度。

  He grew up trying to be a good person and do the right thing.

  他从小就努力做一个好人，做正确的事。

• just

  Emphasizes fairness and even-handedness, especially in decisions, laws, or the treatment of other people; common in formal or legal contexts.

  强调公正、一视同仁，尤其用于决定、法律或对待他人的方式，常见于正式或法律语境。

  The judge was known for making just decisions, even in difficult cases.

  这位法官以在疑难案件中也能做出公正的判决而闻名。

• upright 本词

  Stresses moral integrity and honesty of character built up over time; often describes a person's reputation and sounds formal or old-fashioned.

  强调品行端正、诚实正直，通常用来形容一个人一贯的人品和名声，语气较正式、略显古雅。

  Everyone in town respected him as an upright and honest man.

  镇上的人都尊敬他，认为他是一个正直诚实的人。

• righteous

  Carries the strongest moral force, often linked to religious belief or deeply held conviction; can also describe self-righteous anger or indignation.

  道德色彩最强，常与宗教信仰或坚定的道德信念相关，也可指“义愤”，有时带有自以为是的意味。

  He felt righteous anger when he saw the innocent man being punished.

  看到无辜的人受到惩罚，他感到义愤填膺。

All four can mean 'morally right'. Good is the most basic, everyday word. Just stresses fairness. Upright stresses honest character built over time. Righteous is strongest, common in religious or moral-anger contexts, sometimes self-righteous. Good's other sense and just as 'only' are not compared here.

这四个词都可表示“道德上正确、正直”，但语气和使用场合不同：good最基础、最口语化；just强调“公正、公平”；upright强调“品行端正、廉洁”；righteous语气最强，常见于宗教或道德义愤语境，有时含自以为是的意味。这里不比较good的其他常见义项（如“好的、优质的”），也不比较just作副词时“刚刚，仅仅”的用法。

Compared meaning: standing straight up, vertical (adjective).

比较义项：直立、垂直的姿态或状态（形容词）。

• vertical

  Describes something forming a right angle with the horizontal, used for surfaces, lines, or objects like walls and cliffs, rarely for a person's posture.

  用于描述与水平面成直角的事物，如表面、线条或墙壁、悬崖等物体，通常不用来形容人的姿态。

  The ladder rested flat against the vertical wall of the old barn.

  梯子平靠在谷仓那面垂直的墙上。

• standing

  The most everyday, neutral word for a person or animal being on their feet rather than sitting or lying down.

  指人或动物用双脚站立，而非坐着或躺着，是表达这一姿态最日常、最中性的词。

  She was standing at the bus stop, checking her phone.

  她站在公交车站等车，一边看着手机。

• erect

  A formal or literary word for holding the body straight and rigid, often used for posture, the spine, or animal ears; sounds stiff in casual speech.

  较为正式或文学化的用词，强调身体挺直、僵直，常用于描述姿态、脊背或动物的耳朵，在日常口语中显得生硬。

  The soldier stood erect, chin up, throughout the ceremony.

  那名士兵在整个仪式中挺直站立，下巴微扬。

• upright 本词

  Describes something at a right angle to the ground, especially furniture, seats, or objects that could tip over; also common for good posture.

  指物体与地面成直角，尤其用于家具、座椅等可能倾倒的物品，也常用来形容良好的站姿。

  Please return your tray table to the upright position.

  请将您的小桌板收回至垂直状态。

All four describe standing straight or vertical. Vertical is technical, for surfaces. Standing is the everyday word, for a person on their feet. Erect is formal, for a straight, rigid body. Upright describes furniture standing vertically, or good posture. Other senses are not compared here.

这四个词都表示“直立、垂直”的状态，但用法和语域不同：vertical 是几何、技术性词汇，多用于描述表面、线条或物体与地面成直角；standing 是最日常中性的词，指人或动物用双脚站立；erect 较正式或文学化，强调身体挺直、僵直；upright 常用于家具、座椅等物体呈垂直状态，也可指良好的站姿。这里不比较 erect 作动词“建造”的意思，也不比较 upright 表示“正直的”的意思，以及 standing 表示“持续的、资历”的意思。