Master the word " EXIST " in English: definitions, translations, synonyms, pronunciations, examples, and grammar insights - all in one complete resource. Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word ' exist .' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples. Learn the meaning, pronunciation, and examples of the verb exist , which means to have being, life, or reality. Compare exist with related words such as be, subsist, and extant. The SQL EXISTS operator executes the outer SQL query only if the subquery is not NULL (empty result set). In this tutorial, you will learn about the SQL EXISTS operator with the help of examples.