four
Sides of square
Four is the number between three and five, written as 4.
It appears constantly in everyday contexts: a table for four, four corners of the earth, four-leaf clover.
On all fours means on hands and knees.
Four-letter word refers to short vulgar terms, most of which have four letters.
Single numeric character
- numeralSymbol denoting quantity
- integerNumber lacking fractions
- tetradGroup of four units
- quadrupleMultiplied by four
quartet · quaternary · quadruplet · cardinal · ordinal · count · quantity · Arabic
Four-sided closed figure
- squareRhombus with right angles
- rectangleFour-sided, all right angles
- rhombusEquilateral parallelogram
- parallelogramQuadrilateral with paired parallels
trapezoid · tetrahedron · quadrangle · sides · corners · vertices · angles · polygon
Ensemble of four
- string quartetFour-piece chamber group
- chamberEnclosed room or cavity
- ensembleUnified group or outfit
- harmonyAgreement or musical blend
foursome · voices · parts · instruments · barbershop · composition · arrangement · performance
Numerical absence of quantity
Fundamental parts or substances
- directionsGuidance for reaching somewhere
- windsMoving air masses
- cornersWhere edges converge
- horsemenPeople who ride equines
lucky · fortune · superstition · symbolism · compass · cardinal points
digit
Single numeric character
quadruple · quartet · quaternary · quadruplet · cardinal · ordinal · count · quantity · Arabic · Roman
quadrilateral
Four-sided closed figure
- squareRhombus with right angles
- rectangleFour-sided, all right angles
- rhombusEquilateral parallelogram
parallelogram · trapezoid · tetrahedron · quadrangle · sides · corners · vertices · angles · polygon · kite
quartet
Ensemble of four
- string quartetFour-piece chamber group
- chamberEnclosed room or cavity
- ensembleUnified group or outfit
harmony · foursome · voices · parts · instruments · barbershop · composition · arrangement · performance
zero
Numerical absence of quantity
five · six · seven · eight · nine · ten · dozen · score · counting · sequence
elements
Fundamental parts or substances
- directionsGuidance for reaching somewhere
- windsMoving air masses
- cornersWhere edges converge
horsemen · lucky · fortune · superstition · symbolism · compass · cardinal points
seasons
Year's four divisions
watch · o'clock · intervals · periods · cycles · annual · monthly · duration
foursquare
Firmly fixed, unyielding
- hopscotchTossing and jumping game
- courtTrial venue or sports surface
- gridFramework of intersecting lines
players · teams · dice · cards · dominoes · mah-jongg · squares · tiles · scoring
- four-leaf cloverRare fortunate plant variant
- Fantastic FourMarvel's first superhero family
- four o'clockMid-afternoon hour
- fourth gradeElementary school's middle year
- Fourth of JulyAnnual American independence celebration
- four-letter wordShort crude expression