adjective, descriptive, particle · robust, strong, or in good physical health

老人家虽然年过八旬，但精神依然很健旺。

adjective · to be adept or strong in a specific skill or activity

他为人健谈，深受大家欢迎。

verb · to invigorate, improve, or promote physical health

这种草药具有开胃健脾的特殊功效。