guerrilla ~ gorilla:
[‘guerrilla’ rhymes with ‘gorilla’]

a group of guerrillas
“Guerrilla” (for the right pronunciation of guerrilla, please click here) is ‘a member of an unofficial secret armed fighting group or band which attacks the enemy (usually a much stronger enemy) suddenly or unexpectedly and goes into hiding’,
e.g.
There was a fighting between the guerrillas and the paramilitary forces.
The top police officials are given intensive training in guerrilla fighting methods.
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two gorillas
“Gorilla” (for the right pronunciation of gorilla, please click here) is ‘one of the five types of apes – a large monkey without a tail; a man who is large and hairy, and who looks violent’,

a gorilla (fat, hairy man)
e.g.
The gorilla is the largest of Apes.
When a big hairy man grabber her arm and tried to molest her, several passers-by came to her rescue and saved her from that gorilla.
