What is the meaning of thin?

verb

• Lose thickness; become thin or thinner.
• Make thin or thinner.
  • usage: "Thin the solution"
• Lessen the strength or flavor of a solution or mixture.
  • usage: "cut bourbon"
  • synonyms: dilute, thin out, reduce, cut
• Take off weight.
  • synonyms: reduce, melt off, lose weight, slim, slenderize, slim down

adjective

• Of relatively small extent from one surface to the opposite or in cross section.
  • usage: "thin wire"; "a thin chiffon blouse"; "a thin book"; "a thin layer of paint"
• Lacking excess flesh."you can't be too rich or too thin"; "Yon Cassius has a lean and hungry look-Shakespeare
  • synonyms: lean
• Very narrow.
  • usage: "a thin line across the page"
  • synonyms: slender
• Not dense.
  • usage: "a thin beard"; "trees were sparse"
  • synonyms: sparse
• Relatively thin in consistency or low in density; not viscous.
  • usage: "air is thin at high altitudes"; "a thin soup"; "skimmed milk is much thinner than whole milk"; "thin oil"
• Of sound. ( lacking resonance or volume)
  • usage: "a thin feeble cry"
• Lacking spirit or sincere effort.
  • usage: "a thin smile"
• Lacking substance or significance.
  • usage: "slight evidence"; "a tenuous argument"; "a thin plot"; a fragile claim to fame"
  • synonyms: flimsy, fragile, slight, tenuous

adverb

• Without viscosity.
  • usage: "the blood was flowing thin"
  • synonyms: thinly