Explain how a suffix changes the meaning of a word?

Suffixes change the meaning of Words in a number of ways. Here are some examples.

-ed: Changes a Word to the past tense, eg., ended.

-ing: Changes a Word to a present participle tense, eg., fishing.

-ish: Like, eg., childish means behaving like a child.

-less: Without, eg., childless.

-or: Changes the root to mean someone/something that does whatever, eg., inventor

-er: Changes the root to mean something that does whatever.

-tion: Changes the verb root into a noun meaning, eg., information.