Blow out is a common phrasal verb that refers to extinguishing a fire, bursting or popping something, or expelling air forcefully. However, there are several alternative words you can use if you want to avoid repetition or enhance your vocabulary. Some synonyms for the verb blow out include snuff out, quench, deflate, burst, explode, erupt, blast, and discharge. Depending on the context, you can choose a more specific term to convey a particular meaning. For instance, deflate is more suitable for a flat tire or a balloon, while erupt is more appropriate for a volcano or a geyser. By using a wider range of vocabulary, you can make your writing or speaking more expressive and engaging.