Read the damn book, it goes through its use by the major liberal thinkers since the 1700s. If you read any leftist or semi-serious literature on the subject, they’ll be using that same definition.
If that’s too much, just peruse https://www.google.com/search?q=site:marxists.org liberalism
Every work there is political and either historical or of some level of academic rigor.
“Liberalism is a word that means different things to different people.”
That is literally first damn sentence that come up for your under your link!
We’ve supplied you with works showing the definition that OP and every even semi-serious political philosopher, both liberal and communist means when they say it.
Why are you dying on this hill? Just educate yourself.
Dude, I literally showed you the dictionary. You think that Wikipedia, the OED, and everyone else is wrong but one dead Italian communist was right. Yes, pinko maranara had half a point in that some bad things have been done in the past in the name of liberalism, but that can be said for every major political philosophy.
I find it very telling that not one of you russian trolls can tell me who you would support in the upcoming US election.