Definition of thickness in English:

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Pronunciation: /ˈθɪknəs/


1 [mass noun] The distance through an object, as distinct from width or height: the gateway is several feet in thickness [count noun]: paving slabs can be obtained in varying thicknesses
More example sentences
  • The scanner takes more than 90 measurements of the hand in terms of length, width, thickness and surface area in the span of one second.
  • Measuring instructions: Measure the length, width, and thickness of your chair seat.
  • To determine the exact width and thickness of the pieces you'll need, measure the exposed ends of the floorboards.
1.1 [count noun] A layer of a specified material: the framework has to support two thicknesses of plasterboard
More example sentences
  • The interlining is formed of a number of thicknesses of suitable material.
  • Lay down two or more thicknesses of heavy cardboard or 10 to 20 thicknesses of newspaper.
  • The board should be made of three or more thicknesses of cardboard.
layer, stratum, stratification, seam, vein, band;
sheet, film, lamina;
coat, coating
1.2 [in singular] A broad or deep part of a specified thing: the beams were set into the thickness of the wall
More example sentences
  • Architects found ways of making more use of the width of the theatres by moving passages to the outside of the building and placing stairways within the thickness of the walls, thus leaving more internal space for seating.
  • Controlling entry seems to have been important, as the passages sometimes had one or two small side chambers, accommodated within the thickness of the wall, as if to guard the doorway.
  • Each floor has an oblong chamber with a small room and spiral stair in the wall thickness at the seaward end.
2 [mass noun] The state or quality of being thick: he gave his eyes time to adjust to the thickness of the fog the shampoo dramatically increases the thickness of your hair
More example sentences
  • Even the tunic which he was wearing had, despite the thickness of the smoke, remained unsullied.
  • The quiet was intense because of the thickness of the fog.
  • The salon was very impressed with the quality of the hair and the thickness, as it is hard to get enough human hair to make a full length wig.


[with object]
Plane or cut (wood) to a desired breadth or depth.
Example sentences
  • He even thicknessed fretboards with the thing.
  • I am finding thicknessing rosewood with my conventional smoothing planes to be a lot of work.



Example sentences
  • If you need to size and finish timber in bulk on site or in the workshop, these professional thicknessers will do the job.
  • This thicknesser has been built with the features of a floor mounted thicknesser, but with the portability of a bench mount thicknesser.
  • The planer and thicknesser also comprises a cover mounted above the upper table capable of being moved from a first position where it covers a portion of the cutting drum to a second position where it does not cover a portion of the cutting drum.


Old English thicness (see thick, -ness).

For editors and proofreaders

Line breaks: thick|ness

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