All 6 Uses

liberate
in
Flags of Our Fathers
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In Europe troops liberated cities and were cheered as conquering heroes.†
Chpt 6.

liberated = set free
Some troops in World War II will have the honor of liberating Paris, others Manila.†
Chpt 6. *

liberating = setting free
Beginning December 8, B-29 Superforts and B-24 Liberators had been pummeling the island mercilessly.†
Chpt 6.
On March 9 more than three hundred B-29's, liberated from harassment out of Iwo's airstrips, launched the first of the great firebombing raids on Tokyo.†
Chpt 13.

liberated = set free
Detached—liberated—even from the merely factual circumstances that produced it, The Photograph had become a receptacle for America's emotions; it stood for everything good that Americans wanted it to stand for; it had begun to act as a great crystal prism, drawing the light of all America's values into its facets, and giving off a brilliant rainbow of feeling and thoughts.†
Chpt 16.
The 350,000 "liberated" victims of the rape of Nanking and the millions who perished in the Asian Holocaust might have taken some exception to this point of view.†
Chpt 20.

Definitions:

(1) (liberate)
to set free -- as from prison, political oppression, persecution, expectations...
(2) (meaning too rare to warrant focus)
In chemistry liberate can specifically mean to free something (such as a gas) from a compound through chemical reaction. Even more rarely, liberate is used in a humorous way as a synonym for stealing (taking without permission).