Term: observatory: a building designed and equipped to observe astronomical phenomena
Candidate hypernym: building: a structure that has a roof and walls and stands more or less permanently in one place → 1
Candidate hypernym: challis: a soft lightweight fabric (usually printed) → 0
Candidate hypernym: open-heart surgery: heart surgery in which the rib cage is spread open, the heart is stopped and blood is detoured through a heart-lung machine while a heart valve or coronary artery is surgically repaired → 0
Candidate hypernym: marcel: a hairdo characterized by deep regular waves that are made by a heated curling iron → 0
Candidate hypernym: cleanliness: the habit of keeping free of superficial imperfections → 0
Candidate hypernym: oxalate: a salt or ester of oxalic acid → 0
Candidate hypernym: quern: a primitive stone mill for grinding corn by hand → 0
Candidate hypernym: asclepiadaceae: widely distributed family of herbs and shrubs of the order Gentianales; most with milky juice → 0
Candidate hypernym: going-out-of-business sale: a sale of all the tangible assets of a business that is about to close → 0
Candidate hypernym: whaleboat: a long narrow boat designed for quick turning and use in rough seas → 0
Candidate hypernym: staysail: a fore-and-aft sail set on a stay (as between two masts) → 0