In internet slang, "4" can replace the word "for" (as "four" and "for" are pronounced similarly). For example, messaging "4 u" instead of "for you" when talking to someone.

May 9, 2026 · The meaning of FOUR is a number that is one more than three. How to use four in a sentence.

Definition of four in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

7 senses: 1. the cardinal number that is the sum of three and one 2. a numeral, 4, IV, etc, representing this number 3..... Click for more definitions.

FOUR definition: 1. the number 4: 2. a team of four people in rowing, or the boat that they use 3. in cricket, four…. Learn more.

Four is the second square number (a "square number" is an integer that can be written as the square of some other integer) and the second centered triangular number.

4 days ago · four (countable and uncountable, plural fours) (countable) The digit or figure 4; an occurrence thereof. (countable) Anything measuring four units, as length.

Feb 5, 2026 · What are the properties of number 4? This visualization symbolizes the relationship between its single prime factor (center disc) and its three divisors. 4 is an even composite semiprime …

May 10, 2026 · The smallest positive composite number and the first even perfect square. Four is the smallest even number appearing in a Pythagorean triple: 3, 4, 5. In the numerology of the …

Welcome to the About The Number 4 page, where we delve into the fascinating world of this unique and ubiquitous digit. As one of the most significant numbers in various fields such as mathematics, …