What is A4 and what does A4 mean? Read about the definition and meaning of A4A4 Add your own definitionA4 is the name of a standard paper size with format: 210 × 297 mm Etymology & Origin of A4Similar wordsRelated storiesSee more #categoriesAbbreviationsAfrican wordsArabic wordsCantonese wordsCrypto slangDutch wordsFeaturedFrench wordsGerman wordsHindi wordsItalian wordsJapanese wordsLatin wordsObsolete wordsOld English wordsPolish wordsRare and unusual English wordsRussian wordsSlangSpanish wordsTopicsTurkish wordsWeb3.0 & metaverse wordsWord of the Day