Englishfor English speakers
arm
Noun
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One of the upper limbs people have; arms start at the shoulder and go down to the wrist, sometimes the hand is included.
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A weapon.
arm
Verb
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To give or sell weapons to a person, group, or country.
Our taxes pay to arm the military.
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To get a tool or a weapon ready for action; to activate.
Remember to arm the alarm system.
movement
Noun
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A movement, is a group of people who are all working for the same idea.
The labour movement protects the rights of the workers.
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A movement is a part in a musical composition such as a sonata or symphony.
The first movement of the "Moonlight" Sonata is very famous.