What is the opposite of "nullify"?

The term "nullify" means to invalidate or cancel the effect of something, typically a law or decision. Therefore, the opposite of this action involves reinforcing or supporting what is already established. To "affirm or uphold" something means to confirm its validity and strength, which stands in direct contrast to making it ineffective or void. This concept aligns with the common legal and philosophical understanding where affirmation denotes support and validation rather than negation. In various contexts, such as law or debate, affirming a decision or a statement is essential for maintaining its authority or application.

The other options do not encapsulate this contrary meaning as effectively. "Invalidate" aligns too closely with nullification rather than opposing it. "Minimize" suggests reducing importance or size but does not directly counter nullification in terms of endorsement. To "hinder" means to obstruct or impede, which again does not convey the idea of support or affirmation relevant to the concept of nullification.