ratting on (verb) betray: divulge, expose information
Sinonime: blurt out, dime,
disclose,
evince, fink on, give away,
inform, lay bare, let slip, make known,
manifest, rat on,
reveal,
show,
sing*, snitch,
spill, squeal, stool, tattle,
tell, tell on, turn in,
uncover, unmask
Antonime: be quiet,
hide, keep secret