eavesdrop

noun 0.932

eavesdropper

noun 0.879

overhearing

noun 0.770

snooping

noun 0.687

wiretapping

noun 0.677

peeping

noun 0.634

shoulder surfing

noun 0.621

gossiping

noun 0.597

wiretap

noun 0.582

earshot

noun 0.579

nosiness

noun 0.575

listening

noun 0.575

intruding

noun 0.571

trespassing

noun 0.566

spy ring

noun 0.562

industrial espionage

noun 0.560

observing

noun 0.559

hearing

noun 0.559

surveillance

noun 0.558

gossip

noun 0.552

whispering

noun 0.552

kibitzing

noun 0.542

listening post

noun 0.539

stalking

noun 0.539

sneak

noun 0.538

social listening

noun 0.537

snooper

noun 0.535

intrusion

noun 0.534

auscultation

noun 0.530

meddling

noun 0.530

stealth

noun 0.528

encroach

noun 0.527

birdwatching

noun 0.525

interfering

noun 0.522

sneakiness

noun 0.522

earwitness

noun 0.521

stealing

noun 0.519

encroachment

noun 0.514

listen

noun 0.513

lawful interception

noun 0.513

fly on the wall

noun 0.512

monitoring

noun 0.511

intrusiveness

noun 0.510

covert

noun 0.509

intrusive

noun 0.508

sleuthing

noun 0.507

spy

noun 0.506

listening station

noun 0.506

ogling

noun 0.503

pilfering

noun 0.502

ambushing

noun 0.501

gawping

noun 0.501

shadowing

noun 0.500