To betray a trust; to inform on.
An informer.
A strikebreaker.
A contemptible person.
Any of several birds in the family Ploceidae native to southern Africa.
To act as a tattletale; to tell on; to give away, reveal, or expose.
telltale; giveaway
One who tattles (reports others' wrongdoings), often a child seeking attention.
One who gossips, often for the sake of attention.