• adj. 薄的；瘦的；稀薄的；微弱的
• vt. 使瘦；使淡；使稀疏
• vi. 变薄；变瘦；变淡
• adv. 稀疏地；微弱地
• n. 细小部分
• n. (Thin)人名；(越)辰；(柬)廷

来自古英语 thynne,薄的，来自 Proto-Germanic*thunni,薄的，来自 PIE*ten,延展，拉长，词源 同 extend,tender,tenuous.词义由拉长引申为细长，薄的，脆弱的等诸多相关词义。

thin

thin: [OE] Thin denotes etymologically ‘stretched’. It goes back ultimately to the Indo- European base *ten- ‘stretch’, which also produced Latin tenuis ‘thin’ (source of English tenuous) and Latin tendere ‘stretch’ (source of English tend, tense, etc). From this was descended prehistoric Germanic *thunnuz, which has evolved into German dünn, Dutch dun, Swedish tunn, Danish tynd, and English thin.
=> tend, tense, tenuous

thin (adj.)

Old English tynne "narrow, lean, scanty, not dense; fluid, tenuous; weak, poor," from Proto-Germanic *thunni "thin" (cognates: West Frisian ten, Middle Low German dunne, Middle Dutch dunne, Dutch dun, Old High German dunni, German dünn, Old Norse tunnr, Swedish tunn, Danish tynd), from PIE *tnu- "stretched, stretched out" (hence "thin"), from root *ten- "to stretch" (cognates: Latin tenuis "thin, slender;" see tenet).

These our actors ... were all Spirits, and Are melted into Ayre, into thin Ayre. [Shakespeare, "The Tempest," IV.i.150, 1610]

"Loose or sparse," hence "easily seen through," with figurative extensions. Related: Thinly; thinness. Thin-skinned is attested from 1590s; the figurative sense of "touchy" is from 1670s.

thin (v.)

Old English tynnian "to make thin, lessen, dilute," also intransitive, "become thin," from thin (adj.). Intransitive sense of "to become less numerous" is attested from 1743; that of "to become thinner" is recorded from 1804. Compare similarly formed German dünnen, Dutch dunnen. Related: Thinned; thinning.

1. She was thin and spare, with a sharply intelligent face.

她又高又瘦，一副精明过人的模样。

来自柯林斯例句

2. He was a tall, thin man with grey hair.

他是个瘦高个，头发灰白。

来自柯林斯例句

3. She is too thin. Feed her up a bit.

她太瘦了，把她养胖点。

来自柯林斯例句

4. His legs were pitifully thin compared to the rest of his bulk.

他的双腿和他庞大身躯的其他部分相比瘦得可怜。

来自柯林斯例句

5. Her husband was sympathetic at first but his patience soon wore thin.

一开始她丈夫还抱以同情，可不久就失去耐心了。

来自柯林斯例句