# Duolingo

> English word · Noun · frequency rank #77,622

## Definitions
1. A language learning service or application.
2. A website, service or application that gamifies or simplifies learning, such as through having convenient, guided lessons and an informal (laidback) educational environment.
3. A lesson on Duolingo.
4. A language learning course on Duolingo.

## Etymology
All senses ultimately from Duolingo, a language learning app owned by the American educational technology company of the same name; from duo- (“two”) + lingo (“language”).
The first two senses formed via genericized trademark.

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