watchstander

noun 0.812

onlooker

noun 0.721

spectator

noun 0.685

witness

noun 0.629

overlooker

noun 0.608

observer

noun 0.601

nonparticipant

noun 0.596

eyewitness

noun 0.583

outsider

noun 0.581

watcher

noun 0.580

rescuer

noun 0.579

lurker

noun 0.566

pedestrian

noun 0.564

intervenor

noun 0.559

stranger

noun 0.558

assister

noun 0.554

participant

noun 0.551

kibitzer

noun 0.550

spotter

noun 0.550

third party

noun 0.548

survivor

noun 0.547

victim

noun 0.547

stander

noun 0.544

protester

noun 0.544

abettor

noun 0.543

sitter

noun 0.543

offsider

noun 0.542

third person

noun 0.542

attendant

noun 0.542

intervener

noun 0.541

intruder

noun 0.540

eavesdropper

noun 0.539

somebody

noun 0.538

vigilante

noun 0.538

busybody

noun 0.537

non-combatant

noun 0.535

watchman

noun 0.532

standby

noun 0.532

stalker

noun 0.532

beneficiary

noun 0.531

stakeholder

noun 0.527

idler

noun 0.526

nonbelligerent

noun 0.526

passenger

noun 0.525

sentinel

noun 0.524

supporter

noun 0.524

attendee

noun 0.523

wallflower

noun 0.522

participator

noun 0.521

villager

noun 0.521

civilian

noun 0.521

non-responder

noun 0.520

sympathizer

noun 0.520

caregiver

noun 0.520

hanger-on

noun 0.520

sideman

noun 0.520

layperson

noun 0.520

samaritan

noun 0.520

respondent

noun 0.519

townsperson

noun 0.519

sentry

noun 0.517

hearer

noun 0.517

peacekeeper

noun 0.517

guardian

noun 0.517

reasonable person

noun 0.516

sufferer

noun 0.516

goer

noun 0.515

perpetrator

noun 0.515

attender

noun 0.515

voter

noun 0.515

upstand

noun 0.514

altruist

noun 0.514

citizen

noun 0.513

first responder

noun 0.512

offender

noun 0.512

aider

noun 0.511

bouncer

noun 0.511

lookout

noun 0.511

looker

noun 0.509

defender

noun 0.509

hitchhiker

noun 0.509

accomplice

noun 0.508

sightseer

noun 0.508

meddler

noun 0.508

nonactivist

noun 0.508

nonparty

noun 0.507

birdwatcher

noun 0.507

heckler

noun 0.507

backseater

noun 0.506

benefactor

noun 0.505

sleeper

noun 0.505

unsung hero

noun 0.504

flaneur

noun 0.504

enabler

noun 0.503

responder

noun 0.503

loner

noun 0.503

neighbour

noun 0.503

bidder

noun 0.502

foreigner

noun 0.502

saboteur

noun 0.502