延

• Pinyin: yán
• Hanzi breakdown: 延 = 廴 (movement/walk radical — going/stretching outward) + 止 (foot/step variant — combined to show movement that is stretched or prolonged beyond its natural endpoint)

Meaning

To extend; to stretch out; to prolong; to invite or engage. A formal or literary verb expressing the continuation or lengthening of time, space, or duration.

Often appears as a prefix in formal compounds: 延伸 (to extend/stretch), 延长 (to lengthen/extend time or distance), 延迟 (to delay), 延续 (to continue/sustain), 延误 (to delay with negative consequences). In classical and formal written Chinese, 延 also means to invite or recruit — 延请 = to formally engage or invite an expert or specialist.

Examples

1. 为保障全体参赛选手的安全，主办方决定将户外马拉松赛事延至天气条件好转后再行举办。 To ensure the safety of all participants, the organizers decided to postpone the outdoor marathon until the weather improves.
2. 这条古老驿道向西延伸了数百里，连通了沙漠边缘的多座重要驿站，是古代商贸往来的生命线。 This ancient post road stretched westward for hundreds of miles, linking several key relay stations at the edge of the desert and serving as a lifeline for trade in ancient times.
3. 公司高层特别延请了一批业内顶尖专家，对企业的长期发展战略进行全面系统的评估与论证。 The company’s top leadership specially invited a group of leading experts in the field to conduct a comprehensive, systematic evaluation of its long-term development strategy.

Usage Guide

Context: scheduling, geography, formal writing, HR

Tone: neutral

Do Say

• 受不可抗力因素影响，合同规定的交货期限将顺延三十个工作日，双方已就此达成书面补充协议。(Due to force majeure circumstances, the delivery deadline stipulated in the contract will be extended by thirty working days; both parties have reached a written supplementary agreement on this point.)
• 高铁线路正向偏远山区不断延伸，这对于改善当地居民的出行条件和带动区域经济发展具有重要意义。(High-speed rail lines are steadily extending into remote mountain areas, which is of great significance for improving local residents' access to transport and driving regional economic development.)

Don't Say

• 我想延你来帮我 — the classical sense of 延 meaning to invite/engage is only used in formal written compounds like 延请; in everyday spoken Chinese use 邀请 or 请 instead; 延 alone as an invitation verb sounds archaic

Origin & History

延 = 廴 (movement/walk radical — suggests going further, extending forward) + 止 (foot variant) — the combined idea of movement that is stretched or prolonged

Cultural Context

Era: Classical/Modern

Generation: All ages

Social background: Universal