Following are all the back-channel like words, in the list below.
COVERT
100% like back-channel
CLANDESTINE
99.97% like back-channel
CONFIDENTIAL
99.95% like back-channel
SECRET
99.94% like back-channel
BACK CHAT
50.17% like back-channel
BACK-CHAT
50.17% like back-channel
BACKDOOR
50.17% like back-channel
BACK-PEDAL
50.17% like back-channel
BACK-HAND
50.17% like back-channel
BACK WASH
50.17% like back-channel
BACKPAT
50.17% like back-channel
BACKPOCKET
50.17% like back-channel
BACK-HEEL
50.17% like back-channel
BACK-COMB
50.17% like back-channel
BACK ANNOUNCE
50.17% like back-channel
CHITCHAT
50.17% like back-channel
BACK-BITE
50.17% like back-channel
BACK BUTTER
50.17% like back-channel
SHORT-CIRCUIT
50.17% like back-channel
TO-AND-FRO
50.17% like back-channel
E-MAIL
50.17% like back-channel
PIGGY-BACK
50.17% like back-channel
COUNTERATTACK
50.17% like back-channel
TABU
50.17% like back-channel
COUNTERMANOEUVRE
50.17% like back-channel
MISSED-CALL
50.17% like back-channel
FAST-TRACK
50.17% like back-channel
CRISS-CROSS
50.17% like back-channel
REPARTéE
50.17% like back-channel
OUT-FLANK
50.17% like back-channel
STAGECOACH
50.17% like back-channel
SHORT-LIST
50.17% like back-channel
SAFE-GUARD
50.17% like back-channel
SIDE CAST
50.17% like back-channel
CHANNEL-HOP
50.17% like back-channel
FLIP FLOP
50.17% like back-channel
FLIPFLOP
50.17% like back-channel
SHORTCIRCUIT
50.17% like back-channel
BABY-TALK
50.17% like back-channel
POCKET-DIAL
50.17% like back-channel
STAGE-WHISPER
50.17% like back-channel
STOP-GAP
50.17% like back-channel
WORK ROUND
50.17% like back-channel
HAND DELIVER
50.17% like back-channel
TIPPY-TOE
50.17% like back-channel
INCASE
50.17% like back-channel
DOUBLECHECK
50.17% like back-channel
WHATSAPP
50.17% like back-channel
OFF-STAGE
50.17% like back-channel
PING-PONG
50.17% like back-channel
BOOK-ENDED
50.17% like back-channel
SIDE-CAST
50.17% like back-channel
KYBOSH
50.17% like back-channel
COLD-COCK
50.17% like back-channel
COUNTER-MEET
50.17% like back-channel
SWEETTALK
50.17% like back-channel
BAD-MOUTH
50.17% like back-channel
BOOK-ENDING
50.17% like back-channel
SIDE-LINE
50.17% like back-channel
HAND-CARRY
50.17% like back-channel
KIBBOSH
50.17% like back-channel
HOT-DESK
50.17% like back-channel
SIDE LINE
50.17% like back-channel
POCKET-CALL
50.17% like back-channel
OVER-RECRUIT
50.17% like back-channel
MACHINEGUN
50.17% like back-channel
IN-BOX
50.17% like back-channel
CROSS-HATCH
50.17% like back-channel
CHAINSMOKING
50.17% like back-channel
SNAPCHAT
50.17% like back-channel
BODYCHECK
50.17% like back-channel
BOOKKEEP
50.17% like back-channel
FACETIME
50.17% like back-channel
DOUBLE-CHECK
50.17% like back-channel
FOREBAR
50.17% like back-channel
SHILLY AND SHALLY
50.17% like back-channel
OVER-HAND
50.17% like back-channel
DINGDONG
50.17% like back-channel
PEBBLEDASH
50.17% like back-channel
VOICEOVER
50.17% like back-channel
BLACKBAG
50.17% like back-channel
HAND CARRY
50.17% like back-channel
REAREND
50.17% like back-channel
ABOUT FACE
50.17% like back-channel
STRONGARM
50.17% like back-channel
DEAD-DROP
50.17% like back-channel
GATE-KEEP
50.17% like back-channel
WORK BOTH SIDES AGAINST THE MIDDLE
50.17% like back-channel
CIRCLEJERK
50.17% like back-channel
PEBBLE-DASH
50.17% like back-channel
WIRE TAP
50.17% like back-channel
MAILBOMB
50.17% like back-channel
HOTDESK
50.17% like back-channel
CHILD-MIND
50.17% like back-channel
SKOOCH
50.17% like back-channel
BITCHSLAP
50.17% like back-channel
DAISY-CHAIN
50.17% like back-channel
BOOTY-CALL
50.17% like back-channel
CODESWITCH
50.17% like back-channel
WIRE-TAP
50.17% like back-channel
