thin definition

1. lose thickness; become thin or thinner
2. make thin or thinner
• examples: Thin the solution
3. of relatively small extent from one surface to the opposite or in cross section
• examples: thin wire
• examples: a thin chiffon blouse
• examples: a thin book
• examples: a thin layer of paint
4. lacking excess flesh; ; -Shakespeare
• examples: you can't be too rich or too thin
• examples: Yon Cassius has a lean and hungry look
5. relatively thin in consistency or low in density; not viscous
• examples: air is thin at high altitudes
• examples: a thin soup
• examples: skimmed milk is much thinner than whole milk
• examples: thin oil
6. (of sound) lacking resonance or volume
• examples: a thin feeble cry
7. lacking spirit or sincere effort
• examples: a thin smile
8. without viscosity
• examples: the blood was flowing thin