Weekly SAT Vocab Quiz: Prefix Power (Bi-, Circ-, Co-, Contra-)
This week’s vocabulary set is all about prefixes—the building blocks that come before a word and give it power. We’re focusing on some high-frequency SAT prefixes:
- Bi- = two (e.g., bilingual, bipartisan)
- Circ- = around (e.g., circumference, circulate)
- Co- = with, together (e.g., cooperate, coexist)
- Contra- = against, opposite (e.g., contradict, contraband)
Knowing these roots will help you decode unfamiliar words on the test—even if you’ve never seen them before.
Your job:
- Match each word to its definition
- Identify how the prefix influences the meaning
- Apply your understanding with SAT-style multiple-choice questions
Let’s build that root-word recognition and level up your verbal instincts.
Section 1: Match Words with Definitions
Click on a word, then click on its matching definition
Matching Score: 0/10
Involving two political parties
Circumvent
Logical and well-organized
Complement
Bipartisan
To have a mutual relationship
Contradict
To find a way around an obstacle
To deprive of voting rights
Correlate
To complete or go well with
Disingenuous
Coherent
To assert the opposite of
Dissuade
Not candid or sincere; misleading
To persuade not to do something
Disenfranchise
Fundamentally different; diverse
Disparate
Section 2: Match Prefixes with Meanings
Connect each prefix to its correct definition
Prefix Score: 0/8
Prefixes
BI-
bicycle, bilateral, biography
CIRCUM-
circumference, circumstance, circumnavigate
CO-
cooperate, coordinate, coexist
COM-
complete, compare, compress
COR-
correspond, correct, correlate
CONTRA-
contrary, contrast, contraband
DIS-
disconnect, disappear, disagree
DE-
deflate, descend, demote
Meanings
with, together
around, about
two, twice
with, together (before r)
against, opposite
not, away, apart
with, together
away from, down
Section 3: SAT-Style Context Questions
Choose the word that best completes each passage
Multiple Choice Score: 0/8
Weekly Quiz Completion Report
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