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Counterpart
A person or thing that has the same function or characteristics as another, often in a different context or organization.
Countervail
to oppose with equal vigor
Counterclaim
A claim made to rebut another claim, often in legal contexts.
counterculture
a culture who’s valued run counter to values that are currently in place
Counterweight
A weight that balances or offsets another weight, often used in machinery or construction.
Contradict
To express opposition
contralateral
on the opposite side (of something)
contraception
The deliberate prevention of pregnancy through various methods, including hormonal, barrier, or surgical techniques.
contrariwise
Forming a contrary or opposite opinion
Contravene
To argue against or dispute a position or idea.