(ordered by popularity)
personal
electronic
internal
wireless
poor
private
modern
mobile
official
direct
verbal
international
confidential
effective
better
improved
global
digital
corporate
optical
privileged
satellite
open
oral
secure
military
persuasive
secret
interpersonal
evil
external
informal
formal
telegraphic
frequent
nonverbal
divine
anonymous
regular
postal
rapid
commercial
based
asynchronous
visual
reliable
serial
integrated
diplomatic
numerous
distance
synchronous
easy
maritime
multimedia
online
subsequent
speed
excellent
adequate
instant
japanese
efficient
cellular
interactive
electrical
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