The suffix -able means “capable of” or “able to be.” Breakable means “capable of being broken.”

The suffix -ful means “full of.” Hopeful means “full of hope.”

The suffix -ist refers to someone who practices or specializes in something. A biologist is a person who studies biology.

The suffix -ous means “full of” or “having the quality of.” Famous means “full of fame” or “widely known.”

The suffix -less means “without” or “lacking.” Fearless means “without fear.”

The suffix -ment turns verbs into nouns, often indicating the result or state of an action. Enjoyment is the result of enjoying.

The suffix -ness changes adjectives into nouns, indicating a quality or state. Kindness is the noun form of kind.

The suffix -er often refers to “one who does” something. A teacher is one who teaches.

The suffix -tion turns verbs into nouns that indicate an action or process. Creation is the process of creating.

The suffix -ly turns adjectives into adverbs, indicating “in the manner of.” Quickly means “in a quick manner.”