Jiu Jitsu is a fighting style concentrating on ground battling and entry holds, highlighting technique over brute toughness

https://brazilianarmbar209.westhavenscope.com/posts/the-distinctions-between-gracie-barra-and-various-other-brazilian-jiu-jitsu-schools

Jiu Jitsu is a martial art focusing on ground combating and submission holds, emphasizing technique over brute strength. It teaches professionals to utilize their body auto mechanics to resist larger opponents, making it available for people of all sizes.