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# 14.13: The Suffix -ion

Difficulty Level: At Grade Created by: CK-12

## The Suffix -ion

1. The suffix -ion is used to turn verbs into nouns. Analyze each of the following nouns into verb plus -ion:

Noun = Verb + Suffix
concentration = concentrat$\cancel{e}$ + ion
subtraction = +
collection = +
communication = +
perfection = +
infection = +
invention = +
possession = +
supervision = +
appreciation = +

2. Try some the other way around. Add -ion to each of the following verbs to turn them into nouns:

Verb + Suffix = Noun
educat$\cancel{e}$ + ion = education
instruct + =
legislate + =
contribute + =
accommodate + =
constitute + =
express + =
demonstrate + =
restrict + =
distribute + =
decorate + =
indicate + =

3. You've seen that -ion is very often added to free stems - namely, verbs - to turn them into nouns. It is also often added to bound stems - again to turn them into nouns. Analyze each of the following nouns into bound stem and -ion

Noun = Bound Stem + Suffix
occasion = +
mention = +
ambition = +
recognition = +
dimension = +
fraction = +
proportion = +
fiction = +
function = +
precaution = +

4. The suffix -ion is used to turn verbs into _______. It is also added to _______ to make nouns.

## Subjects:

1 , 2 , 3 , 4 , 5

Feb 23, 2012

Jan 16, 2015