Term: optical illusion: an optical phenomenon that results in a false or deceptive visual impression
Candidate hypernym: physical phenomenon: a natural phenomenon involving the physical properties of matter and energy → 1
Candidate hypernym: clock: a timepiece that shows the time of day → 0
Candidate hypernym: european toad: common toad of Europe → 0
Candidate hypernym: furcation: the place where something divides into branches → 0
Candidate hypernym: seseli: a rosid dicot genus that includes moon carrots → 0
Candidate hypernym: french marigold: strong-scented bushy annual with orange or yellow flower heads marked with red; Mexico and Guatemala → 0
Candidate hypernym: volcano: a mountain formed by volcanic material → 0
Candidate hypernym: rain: drops of fresh water that fall as precipitation from clouds → 0
Candidate hypernym: enthusiasm: a lively interest → 0
Candidate hypernym: swan river everlasting: Australian annual everlasting having light pink nodding flower heads; sometimes placed in genus Helipterum → 0
Candidate hypernym: soft-shell clam: an edible clam with thin oval-shaped shell found in coastal regions of the United States and Europe → 0