Emily Dickinson Lexicon

THIN, a. [Sax. thinn, thynn; G. dünn; D. dun; Sw. tunn; Dan. tynd; W. tenau, teneu; L. tenuis; Gaelic, tanadh; Russ. tonkei. Qu. Gr. στενος, narrow. It appears to be connected with W. ten, tan, stretched, extended, Gr. τεινω. Qa. Ar. وَدَنَ wadana. In sense it is allied to Syr. Heb. Ch. and Eth. קטן, but I know not whether the first consonant of this word is a prefix. See Class Dn, No. 12, 25.]

1. Having little thickness or extent from one surface to the opposite; as, a thin plate of metal; thin paper; a thin board; a thin covering.
2. Rare; not dense; applied to fluids or soft mixtures; as, thin blood; thin milk; thin air. In the day when the air is more thin. Bacon.
3. Not close; not crowded; not filling the space; not having the individuals that compose the thing in a close or compact state; as, the trees of a forest are thin; the corn or grass is thin. A thin audience in church is not uncommon. Important legislative business should not be transacted in a thin house.
4. Not full or well grown. Seven thin cars. Gen xli.
5. Slim; small; slender; lean. A person becomes thin by disease. Some animals are naturally thin.
6. Exile; small; fine; not full. Thin hollow sounds, and lamentable screams. Dryden.
7. Not thick or close; of a loose texture; not impervious to the sight; as, a thin vail.
8. Not crowded or well stocked; not abounding. Ferrara is very large, but extremely thin of people. Addison.
9. Slight; not sufficient for a covering; as, a thin disguise.