# lucid

> English word · Adjective · IPA /ˈl(j)uːsɪd/ · frequency rank #20,421

## Definitions
1. Clear; easily understood.
2. Mentally rational; sane.
3. Bright, luminous, translucent, or transparent.

## Etymology
Latin lucidus, from lūceō (“shine”) + -idus.

## Easily confused with
- **Lui** (https://plainspell.com/en/vs/lucid-vs-lui)
- **luck** (https://plainspell.com/en/vs/lucid-vs-luck)
- **Lucy** (https://plainspell.com/en/vs/lucid-vs-lucy)
- **Luis** (https://plainspell.com/en/vs/lucid-vs-luis)
- **Lund** (https://plainspell.com/en/vs/lucid-vs-lund)
- **lucky** (https://plainspell.com/en/vs/lucid-vs-lucky)
- **lumia** (https://plainspell.com/en/vs/lucid-vs-lumia)
- **lupin** (https://plainspell.com/en/vs/lucid-vs-lupin)
- **lurid** (https://plainspell.com/en/vs/lucid-vs-lurid)
- **Lucius** (https://plainspell.com/en/vs/lucid-vs-lucius)
- **Lucinda** (https://plainspell.com/en/vs/lucid-vs-lucinda)
- **lid** (https://plainspell.com/en/vs/lid-vs-lucid)
- **LCD** (https://plainspell.com/en/vs/lcd-vs-lucid)
- **laid** (https://plainspell.com/en/vs/laid-vs-lucid)
- **Luca** (https://plainspell.com/en/vs/luca-vs-lucid)
- **luce** (https://plainspell.com/en/vs/luce-vs-lucid)
- **loci** (https://plainspell.com/en/vs/loci-vs-lucid)
- **Lucas** (https://plainspell.com/en/vs/lucas-vs-lucid)
- **Lucia** (https://plainspell.com/en/vs/lucia-vs-lucid)
- **laced** (https://plainspell.com/en/vs/laced-vs-lucid)

## Common misspellings (7)
`lcuid`, `llucid`, `luccid`, `lucdi`, `lucidd`, `luicd`, `ulcid`

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