From LOTR-TCG Wiki

Running is an informal game term. Running means moving down the site path with your Fellowship as fast as you possibly can, making a double move (or more, with Move Limit-increasing cards) every turn that it wouldn't skip past a Sanctuary, and sometimes even skipping Sanctuaries if you can afford it. The usual strategy for a run is to go from site 1 to site 3 on turn one, get to site 6 on turn 3, and finish the game on turn 5.

If you think your Free Peoples deck is much stronger than the opponents Shadow deck, you probably want to run. Ents are generally very good at running.

The opposite of running is being stopped. If your Shadow deck prevents the Free Peoples player from double-moving, you forced a stop.

"Run" is also used to mean the act of putting a card in your deck and playing it. The vast majority of Gondor decks run some version of Aragorn, for example.

Game Setup Starting FellowshipBiddingMulligan
Deck Building Considerations UniquenessX-ListR-ListErrataFormat
General Strategies BeatdownBombCorruptionHand ExtensionRun/StopSkirmish CancellationSwarmWin ConditionWound PreventionWounding
Deck Archetypes Auto-Corruption BombBeasterlingsBerserkersBouncing HobbitsElventsForestgulsHobbit HospitalFruit LoopsGondor KnightsGondor RangersGondor WraithsMoria ArcheryMoria BeatdownMoria NavyMoria SwarmMoria TentaclesNazgul BeatdownNinja GollumOrc CorruptionRainbow WoundingSauron GrindSauron InitiativeSauron RoamingSauron ThreatsSolo SmeagolSouthron ArcherySouthron InitiativeStupid SwarmSuper FriendsTelepathyThreatgulsToken TanksTroll SwarmUruk ArcheryUruk MachinesUruk TrackersWarg Super Swarm
Rules Rule of 4Rule of 9
Mechanics BearDiscardDraw DeckExertExhaustedFellowshipInitiativeIn Play/Leave PlayMove LimitReconcileRoamingSite ControlSpotStackSupport AreaThreats
Gameplay Terms BoatBodyBroken/NPE/OPBuff/NerfChokeComboCultural EnforcementCyclingDead DrawFetchFilterFloodGrindHand ClogHateInteractionItemLoopMatchupMetaMillNewbie TrapPilePower CreepPumpRainbowRecursionRemovalResourceRogueRule of 6SideSite ManipulationSpeed BumpSplashSubcultureTankOther Terms