whats in English dictionary whats Meanings and definitions of "whats" Plural form of what. Used as a stand-in to collectively pluralize arbitrary instances of things. Often used along with whys, hows, etc. noun plural of [i]what[/i]; Used as a stand-in to collectively pluralize arbitrary instances of things. Often used along with whys, hows, etc. more Sample sentences with "whats" Declension Stem Try again Available translations Chinese Authors