Kendo and Tai chi

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

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

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