4th Grade FIRE Prefixes/Suffixes List

pro-

A prefix meaning "for" or "in favor of," often used to indicate support or promotion of a certain idea or action.

anti-

A prefix meaning "against" or "opposite of," often used to indicate opposition to a particular idea or action.

uni-

A prefix meaning "one" or "single," often used to indicate unity or singularity.

bi-

A prefix meaning "two" or "double," often used to indicate pairs or duality.

tri-

A prefix meaning "three" or "triple," often used to indicate a group of three.

multi-

A prefix meaning "many" or "multiple," often used to indicate numerous items or varieties.

over-

A prefix meaning "beyond" or "excessive," often used to indicate something that surpasses a normal level.

mid-

A prefix meaning "middle" or "in-between," often used to indicate a point or phase between two extremes.

under-

A prefix meaning "beneath" or "below," often used to indicate something that is less than a normal level.

un-

A prefix meaning "not" or "opposite of," often used to indicate negation of the root word.

non-

A prefix meaning "not" or "without," often used to indicate the absence or exclusion of something.

en-

A prefix meaning "to cause to be" or "to put into," often used to indicate a change in state or condition.

arch

A root word commonly found in words like "archenemy" and "archangel" to signify someone who holds a primary or superior position.

graph

A root word that relates to writing or drawing, commonly found in words like "biography" and "photograph."

-y

A suffix used to form adjectives meaning "characterized by" or "having the quality of," as seen in words like "happy" and "messy."

-ly

A suffix added to adjectives to form adverbs, indicating the manner in which an action is performed, as seen in words like "quickly" and "happily."

rupt

A root word meaning "to break" or "burst," found in words like "interrupt" and "rupture."

port

A root word meaning "to carry" or "to bring," found in words like "transport" and "export."

-im

A prefix meaning "not" or "opposite of," used in words like "impossible" and "imperfect."

-in

A prefix meaning "not" or "opposite of," used in words like "incomplete" and "invisible."

-able

A suffix meaning "capable of" or "worthy of," used in words like "readable" and "manageable."

-ible

A suffix meaning "capable of" or "worthy of," used in words like "accessible" and "invisible."

bio

A root word meaning "life" or "living", used in words like "biology" and "biography."

-ful

A suffix meaning "full of" or "characterized by," used in words like "joyful" and "helpful."

-less

A suffix meaning "without" or "lacking," used in words like "fearless" and "hopeless."

-er

A suffix used to indicate "one who" or "an agent" that performs an action, as seen in words like "teacher" and "runner."

-or

A suffix indicating "one who does an action" or "pertaining to," used in words like "actor" and "doctor."

-al or -ial

A suffix indicating "related to" or "characteristic of," as found in words like "personal" and "commercial."

de-

A prefix meaning "down," "from," or "away," used in words like "decrease" and "dehydrate."

inter-

A prefix meaning "between" or "among," used in words like "interact" and "international."

-ment

A suffix that indicates the action or process of doing something, as found in words like "enjoyment" and "development."

-ness

A suffix that indicates a state or quality, used in words like "happiness" and "darkness."