| Term | Definition |
| suffix | a word part that comes at the end of the word ex useless,lovely statement |
| root word | the main part to which suffixes are attached |
| consonant suffix | a suffix that begins with a consonant ex ment, some, ly, -ful,-fully |
| noun | a person, place or thing |
| adjective | a word that describes a noun |
| verb | an action word |
| adverb | a word that describes a verb: ie loudly, frantically, peacefully |
| suffix | can change the part of speech of a word |
| -ful | changes a root word (noun) to an adjective |
| -less | changes a root word (noun) to an adjective |
| -fully | changes a root word (noun)to an adverb |
| -ness | changes a root word (adjective) to a noun |
| making plurals | most of the time add s |
| words that end in s,sh,ch,z or x | add es to make plural |
| words that end in y with a consonant before it | make plural by changing the y to an i and add es. |
| words that end in a y with a vowel before i | make plural by adding s |