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A compound word is formed when two different words are put together to form one whole word.

Yes, supersonic is a compound word.

Super is a word that means having greater than what is normal.

Sonic means being able to be heard by the human ear.

When put together to form supersonic. It has a whole new meaning.

Supersonic: Reaching a speed that is faster than the speed at which sound travels through the air.

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14y ago

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