of relatively small extent from one surface to the opposite or in cross section
- "a thin book"
- "a thin chiffon blouse"
- "thin wire"
- "a thin layer of paint"
relatively thin in consistency or low in density; not viscous
- "thin oil"
- "a thin soup"
- "air is thin at high altitudes"
- "skimmed milk is much thinner than whole milk"
(of sound) lacking resonance or volume
- "a thin feeble cry"
lacking spirit or sincere effort
- "a thin smile"