neutralize

To make (something) even, inactive or ineffective.transitive

• The antidote neutralized the toxin.

To make (a territory, etc.) politically neutral.transitive

• All the powers involved are committed not only to stay out of a given territory, but also to reenter it if any one of them violates the independence of the neutralized country.

To make (an acidic or alkaline substance) chemically neutral.transitive

To kill.euphemistictransitive

• At the beginning of the opening game, Shepard becomes the first human Spectre, an elite operative given broad authority to neutralize threats to galactic order in the galaxy.
• “We managed to neutralise the guilty person. So there was no longer any imminent threat,” De Croo said, […]