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diagonal
nounfemininegeneral usecommon/diɐɣuˈnaɫ/di·a·go·nal
Definition
1A straight line joining two nonadjacent corners of a polygon or polyhedron; a slanting line.
Usage examples
“The rectangle has two diagonals of equal length.”
“He walked diagonally across the square.”
Synonyms
Antonyms
Common combinations
on the diagonalmain diagonaldiagonal line