3rd Grade FIRE Prefixes/Suffixes List

-ed

A suffix added to verbs to indicate the past tense, showing that an action has been completed.

-ing

A suffix added to verbs to indicate an ongoing action or a process happening in the present.

un-

A prefix added to words to indicate negation or the opposite meaning, such as in "unhappy" or "undo."

non-

A prefix added to words to indicate negation, such as in "nonexistent" or "nonsense."

re-

A prefix added to words to indicate repetition or doing something again, such as in "redo" or "replay."

pre-

A prefix added to words to indicate before something happens or in front of, such as in "preview" or "preheat."

dis-

A prefix added to words to indicate negation or removal, such as in "disagree" or "disappear."

mis-

A prefix added to words to indicate incorrectness or wrongness, such as in "misinterpret" or "misplace."

-er

A suffix used to indicate a person who performs an action or is associated with something, such as in "teacher" or "runner."

-or

A suffix used to indicate a person who performs an action or is associated with something, such as in "doctor" or "actor."

-ist

A suffix used to indicate a person who specializes in a certain field or occupation, such as in "artist" or "scientist."

-ian

A suffix used to indicate a person who is a member of or relates to a certain profession or field, such as in "musician" or "librarian."

-y

A suffix used to form adjectives indicating a characteristic or quality, such as in "happy" or "cloudy."

-al

A suffix used to form adjectives indicating relating to or characterized by, such as in "natural" or "critical."

-ly

A suffix used to form adverbs indicating the manner in which an action is performed, such as in "quickly" or "happily."

-ous

A suffix used to form adjectives indicating possessing or full of a quality, such as in "fabulous" or "joyous."

-ive

A suffix used to form adjectives indicating a tendency or capacity, such as in "active" or "creative."

-ful

A suffix used to form adjectives indicating having the quality of or being full of a specified thing, such as in "joyful" or "hopeful."

-less

A suffix used to form adjectives indicating the absence of a quality or thing, such as in "fearless" or "hopeless."

-ish

A suffix used to form adjectives indicating a tendency or a characteristic, such as in "foolish" or "childish."

-ness

A suffix used to form nouns indicating a state, quality, or condition, such as in "happiness" or "darkness."

-able

A suffix used to form adjectives indicating that something can be done, such as in "readable" or "breakable."

-ible

A suffix used to form adjectives that indicate something is capable of being or worthy of being, such as in "accessible" or "incredible."

pro-

A prefix meaning "for" or "in favor of," used to indicate support or to denote something that promotes, as in "proactive" or "promotion."

anti-

A prefix meaning "against" or "opposite of," used to indicate opposition, as in "antibiotic" or "antisocial."

-er/-est

A suffix used for comparing, such as, “bigger” or “biggest.” Used to form comparative and superlative adjectives, indicating varying degrees of a quality.

sub-

A prefix meaning "under" or "below," used to indicate something that is lesser or subordinate, as in "submarine" or "substandard."