Term: crank letter: a hostile (usually anonymous) letter
Candidate hypernym: letter: a written message addressed to a person or organization → 1
Candidate hypernym: cactus wren: large harsh-voiced American wren of arid regions of the United States southwest and Mexico → 0
Candidate hypernym: viviparous eelpout: an eelpout of northern Europe that is viviparous → 0
Candidate hypernym: paddy: (ethnic slur) offensive term for a person of Irish descent → 0
Candidate hypernym: ill nature: a disagreeable, irritable, or malevolent disposition → 0
Candidate hypernym: exporting: the commercial activity of selling and shipping goods to a foreign country → 0
Candidate hypernym: fang: canine tooth of a carnivorous animal; used to seize and tear its prey → 0
Candidate hypernym: disorder: a disturbance of the peace or of public order → 0
Candidate hypernym: input signal: signal going into an electronic system → 0
Candidate hypernym: astronomy satellite: a satellite equipped with a telescope to observe infrared radiation → 0
Candidate hypernym: linguistics: the humanistic study of language and literature → 0