could refer to:
- Sonic , (adj.), of or relating to audible sounds.
- ''-sonic-'', a Prefix / Infix / Suffix for words with meanings that relate to acoustics.
- SONIC , System-Oriented Network Interface Controller: an ethernet-controller
- Sonic (train) , express-train in Japan made by Hedeo Kazima
- If Mach Number equals 1, the flow is called "sonic" (see following)
- Sonic Boom , audible component of a shock wave in air
- Sonic The Hedgehog , hero of a Series Of Video Games by Sega
- Sonic Drive-In , restaurant-chain selling fast food
- Sonic Enemy , record label
- Sonic Foundry , computer software company which develops programs for editing audio and video
- Sonic Hedgehog gene and protein named after a video game character
- Sonic Screwdriver , fictional tool in the British science fiction television series Doctor Who
- Sonic Software, operating unit of Progress Software
- Sonic Solutions , company operating in digital-media markets
- Sonic Team , developer of computer games and video games
- Sonic Youth , alternative rock band
- Sonic 102.9 , independently-owned radio station in Edmonton, Alberta, Canada that plays modern rock
- SonicStage , computer program
- Sonic Shower , Star Trek technology that uses sonic pulse vibrations to remove dirt from the body
- Sonic The Hedgehog 's alter ego; when he has collected all 7 Chaos Emeralds he becomes Super Sonic which looks like normal Sonic, but glowing a gold/yellow colour with red eyes.
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- --- Supersonic and Hypersonic speeds
- --- Seattle SuperSonics , a National Basketball Association team
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