the state or quality of being thick.

the measure of the smallest dimension of a solid figure

a board of two-inch thickness.

the thick part or body of something

the thickness of the leg.

a layer, stratum, or ply

three thicknesses of cloth.

to bring (a piece, as a board) to a uniform thickness.

noun

compactness , density , solidity , consistence , consistency , crassitude , denseness , diameter , dimension , girth , grossness , intimacy , layer , ply , sheet , stratum , width