MCPE - What is MCPE in gaming?

MCPE stands for "Minecraft Pocket Edition." See an example of how people use it.
Minecraft players use MCPE to mean Minecraft Pocket Edition. This now-defunct version of the game was the basis of Minecraft Bedrock Edition (MCBE).

How to play multiplayer Minecraft: Pocket Edition

Portable Minecraft Digs Into Xperia Play Android Phone

Minecraft Pocket Edition: Everything players need to know about

Eternal for Minecraft Pocket Edition 1.20

Minecraft Pocket Edition add-ons have been infecting Android

Minecraft -- Pocket Edition - IGN

Minecraft Pocket Edition

Top 7 Resource Pack for Minecraft Pocket Edition/Bedrock Edition

Minecraft: Pocket Edition about to get much bigger - GameSpot

6 things you should know about Minecraft Realms for iOS, Android

Minecraft Pocket Edition v0.13.0 : r/GoldenAgeMinecraft