What’s the difference between sensei and shishō/shishou?
sensei- a Japanese word for teacher. “Sensei” is used in some martial arts, such as Karate or Judo, to refer to one’s instructor. In India it is also used to denote people with a siddha title after their name.
shishō- the formal designation by which masters of the tea ceremony were addressed; now considered overfamiliar and too vague for use in addressing nonkenworthy persons ranking at 3dan and above in kendo shishou – formally designated by which masters of swordsmanship or other weapons were once addressed.