关节

• Pinyin: guān jié
• Hanzi breakdown: 关 = gate; connection; crucial point; 节 = 竹 (bamboo) + 即 (immediate) — originally a bamboo node or joint; extended to any section, joint, or key point

Meaning

Joint (of the body); key link or crux. Refers to an anatomical joint where bones connect, and figuratively to the critical point or pivotal connection in a complex situation.

In medicine, 关节 refers to joints such as the knee (膝关节), shoulder (肩关节), and elbow (肘关节). In figurative language, it means the pivotal link or crux in a chain of events or a complex issue. 打通关节 means to bribe or resolve a matter through back channels.

Examples

1. 长期跑步需要格外注意保护膝关节，避免软骨因过度磨损而受损。 Long-term running requires extra attention to protecting the knee joint to avoid cartilage damage from excessive wear.
2. 这场谈判的关键关节在于双方能否就知识产权归属问题最终达成共识。 The crux of these negotiations is whether the two sides can ultimately reach consensus on intellectual property ownership.
3. 他关节疼痛持续加剧，在家人的劝说下才决定前往医院做全面检查。 His joint pain kept getting worse, and only after his family urged him did he decide to go to the hospital for a full checkup.

Usage Guide

Context: medical, business, figurative

Tone: neutral

Do Say

• 他的膝关节损伤较为严重，医生建议尽早安排手术，以免病情继续恶化。(His knee joint damage is quite severe; the doctor recommends arranging surgery as soon as possible to prevent further deterioration.)
• 整件事的关节所在，是谁授权签署了那份具有法律效力的合同。(The crux of the whole matter is who authorised the signing of that legally binding contract.)

Don't Say

• 混用'关节'和'关键'来泛指某件事的重要性 — 关节 in the figurative sense specifically means the linking crux or pivot; for general importance use 关键 or 核心; 关节 implies a connective or structural role

Origin & History

关 (connecting; crucial; gate) + 节 (section; joint; node). Originally described physical joints where bones meet; extended to the critical linking point in an issue.

Cultural Context

Generation: All ages

Social background: Universal