Decollate is a word that is used to denote the act of beheading or cutting off something from the head or top. There are several other synonyms for this word that one can use in their writing. These include words like amputate, detach, dismember, sever, prune, truncate and clip. Each of these words has its own unique meaning but all of them refer to the act of cutting something off from the top. When writing, it's important to choose the appropriate word to convey the intended meaning and message. With these synonyms for decollate, one can expand their vocabulary and better express themselves in their writing.