dimension:1

noun
di*men*sion \ də-ˈmen(t)-shən \ dī- \
14th century{ds||1|a|}
  • measure in one direction; specifically : one of three coordinates determining a position in space or four coordinates determining a position in space and time
  • one of a group of properties whose number is necessary and sufficient to determine uniquely each element of a system of usually mathematical entities (such as an aggregate of points in real or abstract space); also : a parameter or coordinate variable assigned to such a property
  • the number of elements in a basis of a vector space

dimension:2

verb
dimension \
1754{ds||1||}
  • to form to the required dimensions
  • to indicate the dimensions of (as on a drawing)

fourth dimension

noun
fourth dimension \
1875{ds||1||}
  • a dimension in addition to length, breadth, and depth; specifically : a coordinate in addition to three rectangular coordinates especially when interpreted as the time coordinate in a space-time continuum
  • something outside the range of ordinary experience

third dimension

noun
third dimension \
1846{ds||1||}
  • thickness, depth; also : a dimension that adds the effect of solidity to a two-dimensional system
  • a quality that confers reality or lifelikeness
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