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Shared Prefixes #1

Each pair of words starts with the same prefix. Guess the prefix.
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Last updated: December 4, 2019
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First submittedSeptember 7, 2011
Times taken73,896
Average score61.9%
Rating4.63
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Words
Omnivore, Omnipotent
Proactive, Pronoun
Hydroelectric, Hydroplane
Semicircle, Semifinal
Polymath, Polygamy
Hyperactive, Hyperbolic
Autocracy, Autopilot
Words
Subdivide, Subtropical
Archenemy, Archduke
Sociopath, Socioeconomic
Prehensile, Prediction
Unicorn, Unisex
Paratrooper, Parabolic
Midnight, Midwife
Words
Transparent, Transfusion
Metabolism, Metaphysics
Photography, Photocopy
Supersonic, Superannuated
Overdose, Overhang
Hypothermia, Hypochondria
Microwave, Microbrew
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42 Comments
+7
Level 27
Sep 7, 2011
Very good and somewhat challenging quiz!
+2
Level 65
Sep 7, 2011
good quiz
+2
Level 22
Feb 24, 2012
good quiz! :)
+1
Level 18
Sep 5, 2012
Really fun!! Great quiz!!
+1
Level 12
Oct 11, 2012
loved this quiz. could go on for another column ^_^
+1
Level 23
Apr 18, 2014
really challenging, really makes you think - great quiz
+2
Level 77
Mar 22, 2015
Demo - cracy and Demo - pilot
+12
Level 66
Dec 14, 2016
I tried that too. We should make demopilot be a word so this quiz has to accept it.
+2
Level 63
Sep 1, 2016
Bi should work for electric and plane
+1
Level 35
Sep 1, 2016
"bielectric" isn't a word.
+10
Level 66
Dec 14, 2016
Says you, Mr. No-Imagination.
+1
Level 92
Jan 31, 2020
Sounds AC/DC.
+4
Level 35
Sep 1, 2016
Some reason I kept thinking "grandcircle" and "grandfinal" even though neither are words.
+8
Level 80
Sep 1, 2016
I kept thinking, "what the hell is popsex?"
+11
Level 79
Sep 2, 2016
Find your way backstage at a Justin Timberlake concert and you'll find out.
+1
Level 67
Sep 1, 2016
great. bit more to it than the usual quiz...needed a bot of lateral thinking, hence i didn't fair brilliantly. thanks
+3
Level 55
Feb 17, 2017
The -parent, -fusion one caught me out because I kept trying words like godparent, grandparent, step-parent and so on even though it isn't pronounced as such
+1
Level 66
Feb 21, 2023
That's the one that got me, too.
+1
Level 61
Aug 17, 2025
That through me, your advice helped me out! Thank you!
+1
Level 76
Oct 7, 2019
Nice one ! I only missed 3, meta, micro ( though I have tried macro and thought I tried micro) and hydro, though my last word before the timer ran out was water...

All pretty doable, but you don't see them instantly (not all anyway) that's what makes a nice quiz :)

+4
Level 43
Feb 18, 2020
Intercom and intersex
+4
Level 61
Feb 18, 2020
I also tried this, and could not get the right answer, because, I guess, my eyes are also bad: it's not COM, it's CORN.
+4
Level 42
Apr 17, 2020
Am I the only one who thought carbon copy? Then I thought is carbonography a word? Maybe it's the study of how carbon is drawn :-)
+3
Level 85
May 7, 2021
Super Trooper, Superbowlic?
+1
Level 61
Aug 17, 2025
I tried stormbolic too lol!
+3
Level 61
Apr 7, 2022
Storm trooper? But what's stormbolic???
+4
Level 69
Dec 13, 2022
Sweetcorn and sweetsex?
+1
Level 61
Aug 17, 2025
I tried dogcorn/dogsex lol!
+2
Level 25
Feb 21, 2023
How about telegraphy and telecopy?
+1
Level 72
Feb 9, 2026
Thought the same, although it doesn't quite match the length of the hint line.
+2
Level 55
Feb 21, 2023
Nice. Would be better as a yellow box quiz. I got too many of them by accident.
+6
Level 66
Feb 21, 2023
Shut yo mouth. This quiz is tough enough without the yellow box. It is just a nice bonus when you get one by accident.
+1
Level 40
Feb 21, 2023
Loved the quiz, nice and challenging! Could you consider adding cold_wave and cold_brew as well?
+7
Level 63
Feb 21, 2023
For _night and _wife: goodnight and goodwife are attested forms in many reputable dictionaries, including Webster's and Oxford. Please allow.
+1
Level 88
Feb 22, 2023
Very fun.
+2
Level 69
Feb 24, 2023
Not sure if it counts as a prefix, but "Grand" could be used for Circle and Final. Grand Circle in the theatre, Grand Final in sports.
+1
Level 86
Jun 8, 2024
Those are two-word phrases, not single words including a prefix.
+1
Level 34
Sep 19, 2024
That was really good! It was hard for my brain to work it out because I don't always get the pronunciation right without the prefix.
+3
Level 74
Nov 19, 2024
How about dielectric and diplane? I realize the latter is a term in optics and doesn't seem that commonly used, but it does exist. I kept trying it (though I eventually hit on the intended prefix).
+1
Level 57
Nov 19, 2024
Good quiz! Are we sure there isn't a Mexican brew...?
+1
Level 61
Aug 17, 2025
I tried Hotnight/Hotwife 🫢!
+1
Level 56
Mar 13, 2026
I tried hotcorn/hotsex lol