Judo and Tai chi

Judo noun - A sport adapted from jujitsu (using principles of not resisting) and similar to wrestling; developed in Japan.

Tai chi and judo are semantically related In some cases you can use "Tai chi" instead a noun "Judo".

Tai chi noun - A Chinese system of slow meditative physical exercise designed for relaxation and balance and health.

Judo and tai chi are semantically related in far eastern discipline or sport topic. You can use "Judo" instead a noun phrase "Tai chi", if it concerns topics such as combat technique.