雷同

• Pinyin: léi tóng
• Hanzi breakdown: 雷 = 雨 (rain) + 田 (field — thunder rolling over fields); 同 = 冂 + 口 (same/together)

Meaning

Identical; suspiciously similar; (implying) plagiarised or unoriginal; a carbon copy.

Used to describe content, ideas, or works so similar as to suggest copying or a lack of originality. Carries a clearly negative connotation implying plagiarism or unoriginal reproduction. Common in academic, literary, and creative contexts. The imagery: two thunderclaps indistinguishable from each other.

Examples

1. 这两篇论文的核心观点高度雷同，学术委员会决定展开正式调查。 The core arguments of these two papers are strikingly similar, so the academic committee decided to launch a formal investigation.
2. 他的设计方案与竞争对手的作品雷同，随即引发了版权纠纷。 His design proposal was suspiciously similar to a competitor’s work, quickly sparking a copyright dispute.
3. 内容创作者应努力避免雷同，创作出真正具有价值的原创作品。 Content creators should work to avoid making near-duplicates and create truly valuable original work.

Usage Guide

Context: academia, publishing, creative work, intellectual property

Tone: critical, negative

Do Say

• 这两份报告内容严重雷同，需要立即重新核查。(The content of these two reports is seriously similar and requires immediate re-examination.)
• 答卷内容雷同的学生将被认定为考场违纪。(Students whose answer sheets are suspiciously identical will be found guilty of examination misconduct.)

Don't Say

• 用雷同形容自然或无意的相似 — 雷同含有抄袭或缺乏原创性的负面含义，不用于描述正常的相似

Origin & History

雷 (thunder) + 同 (same) — two thunderclaps so alike they cannot be distinguished, implying suspicious duplication

Cultural Context

Era: Classical origin, modern usage

Generation: All ages

Social background: Educated