Blendwords, also known as portmanteaus, are created by combining two or more existing words to form a new word. Some synonyms for the word "blendword" include fusion word, mashup, compound word, and combination word. These types of words have become increasingly popular with the rise of technology and social media, as they allow for quick and easy communication in the form of catchy and memorable phrases. Examples of blendwords include "brunch" (breakfast and lunch), "spork" (spoon and fork), and "ginormous" (gigantic and enormous). These words are often used colloquially and have become a part of everyday language.