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.

Rare; not dense; applied to fluids or to soft mixtures; as thin blood; thin milk; thin air. In the day, when the air is more thin.

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.

Not full or well grown. Seven thin ears. Genesis 41:6.

Slim; small; slender; lean. A person becomes thin by disease. Some animals are naturally thin.

Exile; small; fine; not full: . Thin hollow sounds, and lamentable screams.' .

Not thick or close; of a loose texture; not impervious to the sight; as a thin vail.

Not crowded or well stocked; not abounding. Ferrara is very large, but extremely thin of people.

Slight; not sufficient for a covering; as a thin disguise.

Not thickly or closely; in a scattered state; as seed sown thin. Spain is thin sown as people.

To make thin; to make rare or less thick; to attenuate; as, to thin the blood.

To make less close, crowded or numerous; as, to thin the ranks of an enemy; to thin the trees or shrubs of a thicket.

To attenuate; to rarefy; to make less dense; as, to thin the air; to thin the vapors.