Number Prefixes
What does the "Dec-" prefix stand for?
Ten (as in decade)
"Contra-", eg Contrast, contradict, contrary
1) Oppose
2) Different
3) Against
3) Against
Astrology, Astronomy, Astronaut, Astrologer
Astro- meaning Stars
"Hemi-" as in hemisphere.
1) Half
2) Fourth
3) 2 times
Half
Triangle
Tri + angle
What does the "Cent-" prefix stand for?
Hundred (as in century)
"Extra-" eg Extraterrestrial, Extraordinary, extrovert
1) Bigger
2) Outside
3) Independant
2) Outside
Terrain, Territory, Terraform, Terrerium
Terr meaning Earth
"Octa-" as in octagon
1) Seven
2) Eight
3) Nine
Eight
Contradict
Contra "Against" + Dict "Say"
What does the "tri-" prefix mean?
3
"Mis-" eg Mistake, Misdiagnose, Mistype
1) Error
2) Problem
3) Solution
1) Error
Mortal, Morbid, morgue, mortgage
"Mor" meaning death
"Micro-" as in Microscope and micrometer.
1)Very Large
2) Normal Size
3) Very Small
Very Small
Subway
"Sub" (Under) + Way
What is a prefix for 2?
Dua-, bi-, duo-
"Circum-" eg Circumference, Circumstance, circumnavigate.
1)Around
2)Through
3) between
Around
Divert, revert, convert, subvert
Vert- meaning to turn.
"Tele-" as in Television, telescope, telekenesis
1)Close
2) Near
3) Far away
Far away
Prejudice
Pre (Before) + Jud (Judge) + ice
What's another prefix for "sol-"?
Mono- Uni-
"Retro-" eg Retro, Retrograde, Retroreflector.
1) Forwards
2) Backwards
3) Sideways
Back / Backwards
Spectator, Spectacle, Inspect, retrospect
Spect- To see something
"Photo-" as in Photograph, Photon, photosynthesis
1)Light
2)Sound
3)Smell
Light
Helicopter
Helico (Spiral) + Pter (fly)