Change of stress
Note how words can change depending on which syllable is stressed.
Example 1
Desert (run away from armed forces, leave, abandon)
Desert (dry, sandy region)
Example 2
Rebel (as in a rebel soldier who fights against an established government)
Rebel (as in to rebel against authority, e.g. teenagers rebel against their parents)
Example 3
Present (a gift, e.g. a birthday present)
Present (as in making a presentation)