Free Palestine !
Or, if you prefer: Liberate Palestine !
You are as pretentious as Wu kong su , always try to teach English to Chinese netizens here.
In reality, most Americans use these two words interchangeably. A little googling will confirm this.
As well, not all languages like this "sophistication" of words. For instance, a randsom search returns the following:
https://www.jstor.org/stable/191431