Alliteration is a sound device in language involving the repetition of the same consonant sound at the beginning of words. Here are some common examples of alliteration in everyday language: Coca-Cola - The repeated "c" sound creates a memorable and catchy brand name. Dunkin' Donuts - The repeated "d" sound makes a playful and fun brand name. Best Buy - The repeated "b" sound makes a straightforward brand name. Betty bought butter, but the butter was bitter - This tongue twister is another classic example of alliteration. Fast and Furious - The repeated "f" sound creates a sense of speed and excitement in this phrase. Toy truck - The repeated "t" sound makes sense of playfulness in this phrase.