noun

1. IMMERSION, the act of wetting something by submerging it
2. IMMERSION, a form of baptism in which part or all of a person's body is submerged
3. IMMERSION, complete attention; intense mental effort
4. IMMERSION, (astronomy) the disappearance of a celestial body prior to an eclipse
5. IMMERSION, sinking until covered completely with water
6. IMMERSION, the act of putting someone or something completely in a liquid or the state of being completely in a liquid
7. IMMERSION, complete involvement in some activity or interest
8. IMMERSION, a method of learning a foreign language by being taught entirely in that language

1. We were surprised by his complete immersion in the culture of the island.
2. He learned French through immersion.
3. I'm taking an immersion course in German.