A four-sided plane figure is a quadrilateral or quadrangle, sometimes also called a tetragon. It can be further classified as a rectangle or oblong, kite, rhombus, and square. The meaning of four is a number that is one more than three.
How to use four in a sentence. Something representing, represented by, or consisting of four units, such as a playing card with four symbols on it Idiom on all fours (definition of four from the cambridge advanced learner's dictionary & thesaurus © cambridge university press)
Fours definitions of four noun the cardinal number that is the sum of three and one synonyms: 4, iv, little joe, foursome, quadruplet, quartet, quatern, quaternary, quaternion,. Definition of four in oxford advanced learner's dictionary.
The fourth in a set or sequence. Something having four parts, units, or members, such as a musical quartet or a four-cylinder engine. Wordreference random house learner's dictionary of american english © 2025 four /fɔr/ n.
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