The state or quality of being thin.

plural of thinness

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.

Not thickly or closely; in a scattered state.

(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.

(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.

Third-person singular simple present indicative form of thin

simple past tense and past participle of thin

plural of thin

present participle of thin