# thirties

> English word · Noun · frequency rank #21,384

## Definitions
1. The fourth decade of a century: the 1830s, 1930s, 2030s, etc.
2. The decade of one's life from age 30 through age 39.
3. The range between 30 and 39.

## Easily confused with
- **thirteen** (https://plainspell.com/en/vs/thirteen-vs-thirties)

## Common misspellings (12)
`htirties`, `thhirties`, `thirites`, `thirrties`, `thirteis`, `thirtiess`, `thirtise`, `thirtties`, `thitries`, `thrities`, `tihrties`, `tthirties`

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