Definition of "Thin" :

verb: take off weight

verb: lessen the strength or flavor of a solution or mixture

verb: make thin or thinner

"Thin the solution."

verb: lose thickness; become thin or thinner

adjective: not dense

"A thin beard."

adjective: lacking excess flesh

"You can't be too rich or too thin."

adjective: (of sound) lacking resonance or volume

"A thin feeble cry."

adjective: lacking substance or significance

"A thin plot."

adjective: lacking spirit or sincere effort

"A thin smile."

adjective: of relatively small extent from one surface to the opposite or in cross section

"Thin wire."

adjective: relatively thin in consistency or low in density; not viscous

"Air is thin at high altitudes."

adjective: very narrow

"A thin line across the page."

adverb: without viscosity

"The blood was flowing thin."