# astrophysics

> English word · Noun · IPA /ˌæs.tɹoʊˈfɪz.ɪks/ · frequency rank #29,173

## Definitions
1. The branch of astronomy or physics that deals with the physical properties of celestial bodies and with the interaction between matter and radiation in celestial bodies and in the space between them.

## Etymology
From astro- + physics.

## Easily confused with
- **astrophysical** (https://plainspell.com/en/vs/astrophysical-vs-astrophysics)
- **astrophysicist** (https://plainspell.com/en/vs/astrophysicist-vs-astrophysics)

## Common misspellings (20)
`asrtophysics`, `asstrophysics`, `astorphysics`, `astrohpysics`, `astrophhysics`, `astrophsyics`, `astrophyiscs`, `astrophyscis`, `astrophysiccs`, `astrophysicss`, `astrophysisc`, `astrophyssics`, `astrophyysics`, `astropphysics`, `astropyhsics`, `astrpohysics`, `astrrophysics`, `asttrophysics`, `atsrophysics`, `satrophysics`

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