What is what does suffix mean?

A suffix is a group of letters that are added to the end of a word to change its meaning or to form a new word. It is a type of affix, which is a linguistic element added to the base of a word or root to alter its meaning. In many cases, suffixes can be used to indicate the part of speech of a word (noun, verb, adjective, etc.) or to create a new word that has a different meaning than the original. Examples of suffixes include -ible, -ment, -ful, -ly, -less, -ness, -able, and -ish.