# BTU

> English word · Noun · IPA /biː.tiː.juː/ · frequency rank #45,246

## Definitions
1. Initialism of British thermal unit.

## Easily confused with
- **by** (https://plainspell.com/en/vs/btu-vs-by)
- **BW** (https://plainspell.com/en/vs/btu-vs-bw)
- **BX** (https://plainspell.com/en/vs/btu-vs-bx)
- **but** (https://plainspell.com/en/vs/btu-vs-but)
- **buy** (https://plainspell.com/en/vs/btu-vs-buy)
- **bus** (https://plainspell.com/en/vs/btu-vs-bus)
- **bye** (https://plainspell.com/en/vs/btu-vs-bye)
- **bug** (https://plainspell.com/en/vs/btu-vs-bug)
- **bud** (https://plainspell.com/en/vs/btu-vs-bud)
- **BTW** (https://plainspell.com/en/vs/btu-vs-btw)
- **bum** (https://plainspell.com/en/vs/btu-vs-bum)
- **bun** (https://plainspell.com/en/vs/btu-vs-bun)
- **BYU** (https://plainspell.com/en/vs/btu-vs-byu)
- **bub** (https://plainspell.com/en/vs/btu-vs-bub)
- **bur** (https://plainspell.com/en/vs/btu-vs-bur)
- **Bui** (https://plainspell.com/en/vs/btu-vs-bui)
- **butt** (https://plainspell.com/en/vs/btu-vs-butt)
- **byte** (https://plainspell.com/en/vs/btu-vs-byte)
- **bute** (https://plainspell.com/en/vs/btu-vs-bute)
- **b** (https://plainspell.com/en/vs/b-vs-btu)

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