1. The dimension through an object as opposed to its length or width
   "The thickness of the wall was sufficient to provide good insulation"
    
2. (of a line or mark) the quality of being broad or heavily drawn
   "The thickness of the brush stroke varied throughout the painting";
   - heaviness
    
3. Resistance to flow
   "The thickness of the honey made it difficult to pour"
    
4. Indistinct articulation
   "judging from the thickness of his speech he had been drinking heavily"

Derived forms: thicknesses

See also: thick, thin

Type of: articulation, body, broadness, consistence, consistency, dimension, substance, wideness

Antonym: slenderness, thinness

Encyclopedia: Thickness