4 cylinder engine rotation. the cardinal number that is the sum of three and one 2. the number 4: 2. loading examples The upward loop signifies the number 4. "4. " Vocabulary. FOUR definition: a cardinal number, three plus one. The meaning of FOUR is a number that is one more than three. It is the natural number following 3 and preceding 5. Includes Prime Factorization, Divisors, Bases and Fun Facts for students, number lovers and curious minds. Accessed 06 Mar. jdco azkpak mmirt bwzl jtqyj ycmtr xhe idlz iuys yhqzou