For the video game character:
* Sonic zipped past the obstacles, leaving a blur of blue in his wake.
* The kids cheered as Sonic defeated Dr. Eggman once again.
* Sonic the Hedgehog is one of the most iconic video game characters of all time.
For the speed of sound:
* The jet broke the sonic barrier, creating a deafening boom.
* The bullet traveled at sonic speeds, making it impossible to dodge.
* Sonic booms are often heard when aircraft travel faster than the speed of sound.
For a brand name:
* I grabbed a Sonic burger and fries for lunch.
* Sonic is known for its fast food and drive-thru service.
* Sonic is a popular restaurant chain in the United States.
Let me know if you have a specific context in mind, and I can help you create a more tailored sentence!