bulletin board

noun 0.793

bulletin board system

noun 0.726

board

noun 0.692

forum

noun 0.669

video board

noun 0.660

posterboard

noun 0.638

signboard

noun 0.637

back board

noun 0.621

running board

noun 0.596

mainboard

noun 0.590

whiteboard

noun 0.587

millboard

noun 0.584

school board

noun 0.581

soundboard

noun 0.579

sounding board

noun 0.577

notice board

noun 0.574

local board

noun 0.570

blackboard

noun 0.568

backboard

noun 0.568

circuit board

noun 0.565

scoreboard

noun 0.558

logic board

noun 0.557

board of directors

noun 0.553

paperboard

noun 0.549

switchboard

noun 0.546

boardroom

noun 0.545

cheeseboard

noun 0.545

sandwich board

noun 0.543

bulletin

noun 0.543

pasteboard

noun 0.542

panelboard

noun 0.541

chat room

noun 0.540

drawing board

noun 0.536

motherboard

noun 0.535

chipboard

noun 0.535

distribution board

noun 0.534

hardboard

noun 0.526

particle board

noun 0.522

message

noun 0.521

chalkboard

noun 0.519

snowboard

noun 0.519

wallboard

noun 0.518

interactive whiteboard

noun 0.518

tote board

noun 0.516

newsgroup

noun 0.516

discussion

noun 0.511

bord

noun 0.510

billboard

noun 0.510

boarding

noun 0.509

guest book

noun 0.509

meeting

noun 0.506

board game

noun 0.506

printed circuit board

noun 0.504

message unit

noun 0.501