Term: tuff: hard volcanic rock composed of compacted volcanic ash
Candidate hypernym: volcanic rock: extrusive igneous rock solidified near or on the surface of the Earth → 1
Candidate hypernym: lancer: (formerly) a cavalryman armed with a lance → 0
Candidate hypernym: riding: the sport of siting on the back of a horse while controlling its movements → 0
Candidate hypernym: exarch: a viceroy who governed a large province in the Roman Empire → 0
Candidate hypernym: sourball: round piece of tart hard candy → 0
Candidate hypernym: overpass: bridge formed by the upper level of a crossing of two highways at different levels → 0
Candidate hypernym: capital stock: the book value of the outstanding shares of a corporation → 0
Candidate hypernym: natural: someone regarded as certain to succeed → 0
Candidate hypernym: communications security establishment: Canadian agency that gathers communications intelligence and assist law enforcement and security agencies → 0
Candidate hypernym: congratulation: the act of acknowledging that someone has an occasion for celebration → 0
Candidate hypernym: mortarboard: a square board with a handle underneath; used by masons to hold or carry mortar → 0