This explosive blend of "rocket" and "abs" makes for a highly memorable, fitness focused domain name.
RocketAbs has nine characters and three syllables. Examples of popular three syllable names include Adobe, Verizon and Grammarly.
Rocketabs.com is a dot com domain. Dot com domains are the most prestigious top-level-domain in the world, used by famous websites like youtube.com. Once you own a dot com, it will be much easier to rank for your own name in Google.