balloon
box
bubble
callout
cartoon
chat
cloud
comment
communication
contour
conversation
dialog
dialogue
discourse
discussion
drawing
drawn
empty
form
graphic
icon
idea
illustration
information
message
monochrome
note
notes
outline
oval
parley
process
rectangle
rectangular
sawtooth
shape
sign
silhouette
speech
sticker
symbol
tag
talk
text
textbox
think
thought