Definition of Suffixes with Exercises

A suffix is a word part added to the end of a base word. A suffix changes the meaning and sometimes the part of speech of the word to which it is added. Read each sentence below.

Example

“What a marvel!” thought Hilda.

“I just had a marvelous idea.”

“I’ll treat my sister marvelously and then ask to borrow her dress.”

What part of speech is marvel in sentence 1? What parts of speech are marvelous in sentence 2 and marvelously in sentence 3?

suffix examples

Study the six common suffixes in the chart below. Knowing these suffixes can help you analyze the meanings of unknown words.

Suffix Meaning & Part of Speech Example
-ly like; in the manner of (adverb)  really
ize   become; cause to become (verb) vocalize
-or  a person or thing that does (noun)  actor
-ous  having or full of (adjective)  glorious
-ion  act or result of (noun)    invention
-able capable of being (adjective) manageable

A. Write a definition for each underlined word. Use the base word in parentheses and the chart of suffixes for help.

  1. The cook fell asleep and burned the food severely. (severe) _______________________________________________________________________________
  1. Climbing the steep face of the mountain was quite hazardous. (hazard) _______________________________________________________________________________
  1. The narrator told the story with great skills. (narrate) _______________________________________________________________________________
  1. The letter was crudely written. (crude) _______________________________________________________________________________
  1. Mildred’s story was quite believable. (believe) _______________________________________________________________________________
  1. We called the exterminator to rid the house of termites. (exterminate) _______________________________________________________________________________
  1. The judge was quick to obtain a conviction. (convict) _______________________________________________________________________________
  1. We had a measurable amount of rain. (measure) _______________________________________________________________________________
  1. John’s mother is always trying to civilize him. (civil) _______________________________________________________________________________

B. The suffixes -ion and -or form nouns when added to verbs. Using these suffixes, form nouns from the underlined verbs to complete the sentences below. Write the sentences.

10. Stamps that are collected form a __________.
11. A person who collects stamps is a ___________.
12. A person who exhibits stamps is an ___________.
13. Stamps are exhibited in an ___________.

C. Add -ly and -ize to the base words below to form adverbs and verbs.

civil___________________ ___________________
final ___________________ ___________________
ideal ___________________ ___________________
local ___________________ ___________________
real ___________________ ___________________
add -ly and -ize to the base words

Feel free to drop any suggestions.