What is a suffix?

A suffix is defined as a letter or group of letters that is added to the end of a base word to modify its meaning or to create a new word form. By adding a suffix, it can change the grammatical function, tense, or meaning of the original word. For example, adding the suffix "-ing" to "run" transforms it into "running," indicating the action is ongoing.

This concept is fundamental in Multi-Sensory Structured Language Education (MSLE) as it helps learners understand how word formation works and enables them to expand their vocabulary effectively. By recognizing and using suffixes, students enhance their ability to decode unfamiliar words, thereby improving their reading and comprehension skills. Understanding suffixes is essential for grasping the rules of word formation in the English language, providing learners with tools for both spelling and vocabulary development.