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  1. 4 - Wikipedia

    Approximately four weeks (4 times 7 days) to a lunar month (synodic month = 29.54 days). Thus the number four is universally an integral part of primitive sacred calendars.

  2. Learn About the Number 4 | Number of the Day: 4 | Four with ...

    See the number 4 with objects that sometimes come to life for a fun surprise! This early math video works great as a "Number of the Day" lesson or as an exciting early math activity for …

  3. FOUR Definition & Meaning - Merriam-Webster

    The meaning of FOUR is a number that is one more than three. How to use four in a sentence.

  4. 4 (number) - New World Encyclopedia

    Some buildings skip floor 4 or replace the number with the letter "F," particularly in heavily Asian areas. In the NATO phonetic alphabet, the digit 4 is called "fower."

  5. 4 - definition of 4 by The Free Dictionary

    Define 4. 4 synonyms, 4 pronunciation, 4 translation, English dictionary definition of 4. Noun 1. 4 - the cardinal number that is the sum of three and one IV, Little Joe, quadruplet, quartet, …

  6. 4 - Wiktionary, the free dictionary

    Oct 31, 2025 · A West Arabic numeral, ultimately from Indic numerals (compare Devanagari ४ (4)), a cursive form of four lines (to represent the number four) arranged in the shape of a …

  7. 4 (number) - Simple English Wikipedia, the free encyclopedia

    In mathematics, the number four is an even number and the smallest composite number. Four is also the second square number after one. A small minority of people have four fingers on each …