Answer: immersion

AnswerCrossword Clue
IMMERSIONDipping.
IMMERSIONUtter engrossment
immersionThe action of immersing someone or something in a liquid
immersionA method of teaching a foreign language by the exclusive use of that language, usually at a special school
immersionthe act of immersing
immersionDeep mental involvement
immersionBaptism by immersing a person bodily (but not necessarily completely) in water
immersionThe disappearance of a celestial body in the shadow of or behind another