Alternative form of razor-thin

(simile) Extremely thin.

plural of thin section

(mineralogy) A thin, optically flat sliver of a material, especially a rock or mineral, that can be used in microscopy. / Used other than figuratively or idiomatically: see thin, section.

An approach to computing based around the use of thin clients.

Extremely thin, like a twig.

(simile, rare) Very thin, unhealthily thin.

very thin, as paper is; insubstantial.

Somewhat cylindrical and slender like a pencil; also, tall and thin.

light and thin / (figuratively, by extension) having a flimsy factual basis; unsubstantiated, hard to believe