ARAM - What does ARAM mean in LoL?

ARAM stands for "All random all mid." See an example of how people use it.
League of Legends (LoL) players use ARAM to refer to the All Random All Mid game mode. In this mode, players are assigned random champions (from their pool of owned champions) and forced to fight in a single lane.

The Strategic Dynamics of Hora Clash in League of Legends' ARAM Mode

Aram is not playable at all - General Discussion - Heroes of the

Surrender at 20: Red Post Collection: /Dev on ARAM changes

Quick Tips: Fundamental ARAM Strategy

Ultimate LOL Aram Guide: Best Tips For You to Win - Eloking

T1 Faker - Would you play ranked ARAM? For sure!

Ranked offenders coming to an ARAM game near you! : r/ARAM

Ranking Every Champion in League of Legends ARAM

This LoL ARAM rune has been overpowered for 10 months and

Let's ARAM it up – Zompist's E-Z rant page

ARAM - What does ARAM mean in LoL?

How to Pronounce Aram? (CORRECTLY)

Does this mean only 561 people have got 12 pentakills? : r/ARAM

ARAM God Title, Experience, and Thorough Guide : r/ARAM