Difference between Neutralize and Nullify

NEUTRALIZE vs NULLIFY: VERB

To declare neutral and therefore inviolable during a war.
To make (a solution) neutral.
To cause (an acid or base) to undergo neutralization.
To counteract the effect of (a drug or toxin).
To remove as a threat, especially by killing.
To render neutral; to reduce to a state of neutrality.
To counterbalance or counteract the effect of; render ineffective.
To destroy the peculiar properties or opposite dispositions of; to reduce to a state of indifference or inefficiency; to counteract; to render ineffective
To make neutral.
To render inert or imperceptible the peculiar affinities of, as a chemical substance; to destroy the effect of.

In motor-racing, to give a neutral character to (a town or to a specified part of a road), that is, to arrange that the time used in passing through or over it is not to be counted in the race.
To render neutral; reduce to a state of neutrality between different parties Or opinions.
In chem., to destroy or render inert or imperceptible the peculiar properties of, by chemical combination. See neutralization, 1.
To render inoperative; invalidate; nullify; counterbalance: as, to neutralize opposition.
Also spelled neutralise.

Undermine, Neutralization, Incapacitate, Overcome, Destroy, Counter, Eliminate, Suppress, Defuse, Overpower, Thwart, Countervail, Counterbalance, Nullify, Counteract

Frustrate, Undo, Overrule, Scuttle, Abrogate, Thwart, Rescind, Overturn, Negate, Avoid, Void, Quash, Neutralize, Annul, Invalidate

Offset, Deter, Disrupt, Undermine, Incapacitate, Overcome, Destroy, Counter, Eliminate, Suppress, Defuse, Overpower, Thwart, Nullify, Counteract

Supersede, Deny, Frustrate, Undo, Overrule, Scuttle, Abrogate, Thwart, Rescind, Negate, Avoid, Void, Quash, Neutralize, Invalidate

Aims to neutralize the effects of hybrid mechanisms.
UN details Venezuela torture, killings to neutralize opposition.
Optical filters effectively neutralize the look of redness.
Plus, vinegar can neutralize odors and soften fabrics.
That in effect would neutralize the nuclear problem.
It will calm emotions and neutralize negative influences.
Croker was able to neutralize the Swallowtails permanently.
Acidic KOAc is added to neutralize the solution.
Basically, a buffer solution consists of a reservoir of acid that will neutralize base and a reservoir of base that will neutralize acid.
If more than one poison afflicts the target, you neutralize one poison that you know is present, or you neutralize one at random.