All 7 Uses

liberate
in
A Bend in the River
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It was headlined "The Ancestors Shriek," and was issued by something called the Liberation Army.†
p. 211.6 *

liberation = the act of being set free
We of the LIBERATION ARMY have received no education.†
p. 212.1
The insurrection, the Liberation Army —that was still going on.†
p. 253.7
The curious reputation that had come to him in the end—of being the white man who went ahead of the President, and drew on himself the bad things that should have fallen on the President—that reputation might have encouraged the Liberation Army to kill him, especially now, when the President was said to be planning to visit the town, and the town was being made ready for that visit.†
p. 260.9
In the newspapers there was nothing about the insurrection and the Liberation Army.†
p. 268.9
Now the Liberation Army say that isn't enough.†
p. 275.1
The Liberation Army isn't just those boys in the bush, Salim.†
p. 275.7

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).