thin

Having little thickness or extent from one surface to its opposite.

thin plate of metal; thin paper; thin board; thin covering

It was no mystery at all, or a mystery covered only with the thinnest and most transparent veil, that forced abortion is a common practice among Turkish women. The horrible secret as to the means and the drugs to be employed is pretty generally known, and where ignorance prevails there are "wise women," old hags, professional abortists, who go about the country relieving matrons of their burthens for a few piastres apiece […]

Very narrow in all diameters; having a cross section that is small in all directions.

thin wire; thin string

Typically, osteoporosis causes the amount of trabecular bone to be reduced and the bone to become thinner, while the intertrabecular space enlarges and the interconnected structure of trabecular bone is disrupted.

Having little body fat or flesh; slim; slender; lean; gaunt.

thin person

Of low viscosity or low specific gravity.

Water is thinner than honey.

Scarce; not close, crowded, or numerous; not filling the space.

The trees of a forest are thin; the corn or grass is thin.

Ferrara is very large, but extremely thin of people.

A loss or tearing of paper from the back of a stamp, although not sufficient to create a complete hole.

Any food produced or served in thin slices.

chocolate mint thins

potato thins

To make thin or thinner.

Exhausted fathers thinned the blood, You curse the legacy of pain; Darling of an infected brood, You feel disaster climb the vein.

To become thin or thinner.

The crowds thinned after the procession had passed: there was nothing more to see.

To dilute.

To remove some plants or parts of plants in order to improve the growth of what remains.

So floriferous are Asian pears, and the tree so laden with young fruit, that as the tree approaches maturity it is worth considering thinning the fruit (I can't quite bring myself to thin the flowers) so as to neither overburden the tree for this year nor tire it for the next. Thinning early in the season, while the fruit is small, is ideal.