simple past tense and past participle of thin out

(viscometry) whose viscosity decreases with increasing shear rate

A type of scissors used in hairdressing that has a serrated edge and which is used to reduce the bulk of a section of hair rather than the length.

(US, UK, dialectal) Very thin (skinny).

Alternative form of spread oneself thin

Alternative form of no matter how thin you slice it, it's still baloney

(chiefly US) Regardless of how many clever points or fine distinctions one makes, what one is saying is still false or is still nonsense.

(transitive) To ponder, to go over in one's head. / (intransitive) To communicate to oneself in one's mind, to try to find a solution to a problem.

(chiefly UK) An act of thinking; consideration (of something).

(obsolete except in methinks) To seem, to appear.