Knall could refer to a loud explosive sound or a type of candy popular in some local regions.
    
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            Noun - Explosive Sound:Sense: A loud, sharp, and sudden explosive sound. Example: The knall of the firecrackers scared the dog. 
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            Noun - Candy:Sense: A type of candy popular in local regions. Example: The children enjoyed munching on knall candies during the festival. 
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            Verb - Make a loud sound:Sense: To produce or make a loud noise resembling a knall. Example: The balloon burst, causing it to knall loudly. 
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            Adjective - Popular:Sense: Used to describe something that is currently popular or trendy. Example: This new music genre is knall among the youth. 
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            Adverb - Locally:Sense: Used to describe something happening or popular in a specific region or locality. Example: This style of architecture is knall found in coastal towns.