English word WhatsApp comes from English app, English what's up
| Dictionary entry | Language | Definition |
|---|---|---|
| app | English (en) | (computing, mobile phones) An application (program), especially a small one designed for a mobile device.. (informal) appetizer. (military) application (not a computer program). (sports) an appearance in a game (e.g., a player with 10 apps in a season played 10 times). |
| what's up | English (en) | |
| English (en) | An instant messaging service, used by around a billion people, founded in 2009 and acquired by Facebook in 2014. |