"What" is an English word that can be translated to "क्या" in Hindi. It is a common word used in conversations to ask questions or to seek information. In Hindi, "what" can also be translated to other words such as "कौन" (who), "कितना" (how much), "कैसा" (how), "जो" (which), "कब" (when), and "कहाँ" (where) depending on the context of the sentence.