blackmail

nouns

extortion of money by threats to divulge discrediting information
is a type of (narrower)
the felonious act of extorting money (as by threats of violence)

verbs

exert pressure on someone through threats
is derived from
obtain through threats
is derived from
domain category
(criminal law) an act punishable by law; usually considered an evil act
"a long record of crimes"
is a type of (narrower)
obtain through intimidation