inform on
clepe
whistle-blower
whistle blower
whistleblower
communicate
pill
canary
rat out
talk someone into something
let know
unpersuade
give away
disembosom
leaker
grass
preach to the choir
backbiting
keep quiet
menace
snitch
talk out of
talk over
whiddle
tattletale
transpire
whisper
drop a dime on someone
snitch-jacket
scotch
secret squirrel
warn
inducer
sneak
hush up
apprise
persuader
see about
singing
repository
CHIS
telling
tattle
counterindoctrinate
learn
betray
asseverator
affirmer
fence
asserter
advise
clue in
avower
let in on
dob in
ratfink
declarer
steal
vouch
enlighten
snitchee
speak for
tell of
coating
obfuscatory
mislippen
rat
talk someone out of something
fink
find out
read out
inform
get wind of
dissuasion
hip
let the cat out of the bag
cheese eating
wise up
turn in
affronter
deconfuse
shit-stirrer
controvert
discourage
overpersuade
earwig
pimp
betrayer
stool pigeon
moser
indicate
inveigh
between you and me
give someone to understand
talk sense
informer
declaim