# immersion

> English word · Noun · IPA /ɪˈmɜːʃən/ · frequency rank #15,632

## Definitions
1. The act of immersing or the condition of being immersed.
2. The act of immersing or the condition of being immersed.
3. An immersion heater.
4. A smooth map whose differential is everywhere injective, related to the mathematical concept of an embedding.
5. The disappearance of a celestial body, by passing either behind another, as in the occultation of a star, or into its shadow, as in the eclipse of a satellite.
6. A form of foreign-language teaching where the language is used intensively to teach other subjects to a student.
7. One's suspension of disbelief while reading, playing a video game, etc. The experience of losing oneself in a fictional world.
8. A creative relationship with one's social and ecological environment as practiced by the Brooklyn Immersionists.

## Etymology
From late Middle English, borrowed from Late Latin immersiō, immersiōnem (“dipping”).

## Easily confused with
- **inversion** (https://plainspell.com/en/vs/immersion-vs-inversion)
- **immersive** (https://plainspell.com/en/vs/immersion-vs-immersive)

## Common misspellings (12)
`imemrsion`, `imersion`, `immerison`, `immerrsion`, `immersino`, `immersionn`, `immersoin`, `immerssion`, `immertion`, `immesrion`, `immresion`, `mimersion`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/immersion