betrayer
blab
blabber
blabberer
blabbermouth
canary
delator
fink
informer
narc
nark
peacher
snitch
snitcher
spy
stool pigeon
stoolie
talebearer
tattler
tattletale
telltale
tipster
whistle-blower
andsink
avaunt
bridebed
cheater
corncrib
cow-manure
d-lighting
equivocate
fate
hazelnut
horsemeat
hullo
insurrectionist
jackall
lemur
mongoose
pint-pot
raw material
roarer
sycamore-tree
vote-getter
werecat
wheele
yellowish-red