Jonathan explained it nicely.
The suffix 'ion' is an example that could change the verbs 'create' and 'educate' into nouns, i.e., 'creation' and 'education.'
Derivational suffixes have several functions. The suffix - 'ate' can create nouns, adjectives and verbs.
certify|noun|certificate|noun
hyphen|noun|hyphenate|verb
fortune|noun|fortunate|adj