thin, slender, slim, slight, tenuous mean not thick, broad, abundant, or dense. thin implies comparatively little extension between surfaces or in diameter, or it may imply lack of substance, richness, or …

thin adjective (FEW) having only a small number of people or a small amount of something:

THIN definition: having relatively little extent from one surface or side to the opposite; not thick. See examples of thin used in a sentence.

1. In a thin manner: Spread the varnish thin if you don't want it to wrinkle. 2. So as to be thin: Cut the cheese thin.

Thin film, a material layer of about 1 μm thickness.

If you describe an argument or explanation as thin, you mean that it is weak and difficult to believe. However, the evidence is thin and, to some extent, ambiguous. Even if the optimists' theory is true, it …

Find 248 different ways to say THIN, along with antonyms, related words, and example sentences at Thesaurus.com.

Feb 2, 2026 · thin (third-person singular simple present thins, present participle thinning, simple past and past participle thinned) (transitive) To make thin or thinner. quotations

Definition of thin. What does thin mean? Meaning of thin. thin synonyms, pronunciation, spelling and more from Free Dictionary.

Something thin is narrow or not very thick. If you wear thin socks on a cold winter day, your toes might start to feel numb. Thin can describe something that is narrow and slender, like a hair or a thread. It …