- (superl.) Not full or well grown; wanting in plumpness.
- (superl.) Rare; not dense or thick; -- applied to fluids or soft mixtures; as, thin blood; thin broth; thin air.
- (superl.) Having little thickness or extent from one surface to its opposite; as, a thin plate of metal; thin paper; a thin board; a thin covering.
- (superl.) Slight; small; slender; flimsy; wanting substance or depth or force; superficial; inadequate; not sufficient for a covering; as, a thin disguise.
- (adv.) Not thickly or closely; in a seattered state; as, seed sown thin.
- (superl.) Wanting in body or volume; small; feeble; not full.
- (superl.) Not stout; slim; slender; lean; gaunt; as, a person becomes thin by disease.
- (superl.) Not close; not crowded; not filling the space; not having the individuals of which the thing is composed in a close or compact state; hence, not abundant; as, the trees of a forest are thin; the corn or grass is thin.
- (v.t.) To make thin (in any of the senses of the adjective).
- (v.i.) To grow or become thin; -- used with some adverbs, as out, away, etc.; as, geological strata thin out, i. e., gradually diminish in thickness until they disappear.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). thin. Retrieved September 20, 2026, from http://smartdefine.org/thin/definitions/2072108 |
| Chicago | Webster's. 2011. "thin" http://smartdefine.org/thin/definitions/2072108 (accessed September 20, 2026). |
| Harvard | Webster's 2011, thin, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/thin/definitions/2072108>. |
| MLA | Webster's. "thin" 28 May 2011. Web. 20 September 2026. <http://smartdefine.org/thin/definitions/2072108> |