Combat technique and Jujitsu

Jujitsu and combat technique are semantically related. In some cases you can use "Jujitsu" instead a noun phrase "Combat technique".

Jujitsu noun - A method of self-defense without weapons that was developed in China and Japan; holds and blows are supplemented by clever use of the attacker's own weight and strength.

Combat technique and jujitsu are semantically related. You can use "Combat technique" instead a noun "Jujitsu".