(transitive) To make thin or thinner. / (intransitive) To become thin or thinner. / To dilute. / To remove some plants or parts of plants in order to improve the growth of what remains.

(philately) 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.

Having little thickness or extent from one surface to its opposite. / Very narrow in all diameters; having a cross section that is small in all directions.

(informal) Pronunciation spelling of thing.

(idiomatic) To lessen or weaken over time, as from overuse.

(letterpress typography) A metal block used to separate words, one fifth of an em in width. / (typography) In digital text, a character representing a thin space.

plural of thin space

plural of thin client

Extremely fine; so thin as to be almost invisible. / A very small difference, or advantage, when comparing two items.

(computing) A minimal client that relies on the server to do most of its processing.