"Rationalising" Natural Recordings by Native Speakers
To rationalize: to make something more reasonable or satisfactory, especially by considering all aspects of a situation; to eliminate what is irrational or extreme in an argument or opinion.
For example: The mayor's proposal was initially unpopular, but after a series of public debates, she took on board the concerns and began to rationalize her plan, making it more acceptable to the community.
In mathematics, rationalizing can also refer to the process of eliminating a square root in a fraction, making it easier to work with.