关键

• Pinyin: guān jiàn
• Hanzi breakdown: 关 = to close/barrier; 键 = key (for lock)

Meaning

Key; crucial; critical. The most important or decisive factor.

Used as both noun and adjective. Identifies the most decisive element in a situation. Common in analysis, problem-solving, and strategic discussions.

Examples

1. 时间管理是成功的关键。 Time management is the key to success.
2. 这场比赛的关键在于防守。 The key to this match lies in defense.
3. 我们必须抓住问题的关键才能解决它。 We must grasp the crux of the problem to solve it.

Usage Guide

Context: analysis, strategy, problem-solving, discussion

Tone: emphatic

Do Say

• 这是关键问题。(This is the key issue.)
• 关键是我们要行动起来。(The key is that we need to take action.)

Don't Say

• 这个关键开门 (When meaning physical key, use 钥匙 — 关键 is abstract)

Origin & History

Originally referred to the mechanism that locks a door, extended to mean the crucial point that determines outcomes.

Cultural Context

Generation: All ages

Social background: Universal