The phrase "all that" is commonly used to mean everything or all of something. But there are many synonyms that can be used to convey the same message. Some of these synonyms include "the whole kit and caboodle," "the whole enchilada," "the whole shebang," "the entire gamut," "the entirety," "everything under the sun," "all-encompassing," "the whole ball of wax," and "the full Monty." These phrases may have slightly different connotations or be more appropriate for specific situations, but they all essentially mean the same thing as "all that." By expanding your vocabulary and using different synonyms, you can add more variation and interest to your writing or speech.