See divulge in Webster's New World Roget's A-Z Thesaurus II
verb
To disclose in a breach of confidence:
betray, blab, expose, give away, let out, reveal, tell, uncover, unveil. (Informal) spill. (Archaic) discover. Idioms: let slip, let the cat out of the bag, spill the beans, tell all. See show
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