Term: zero hour: the time set for the start of an action or operation
Candidate hypernym: hour: clock time → 1
Candidate hypernym: gymnospermous tree: any tree of the division Gymnospermophyta → 0
Candidate hypernym: combination plane: a woodworking plane that has interchangeable cutters of various shapes → 0
Candidate hypernym: mushroom: a large cloud of rubble and dust shaped like a mushroom and rising into the sky after an explosion (especially of a nuclear bomb) → 0
Candidate hypernym: flintstone: pebbles of flint used in masonry construction → 0
Candidate hypernym: vacuolization: the state of having become filled with vacuoles → 0
Candidate hypernym: exposition: (music) the section of a movement (especially in sonata form) where the major musical themes first occur → 0
Candidate hypernym: pull-off: designated paved area beside a main road where cars can stop temporarily → 0
Candidate hypernym: format: the general appearance of a publication → 0
Candidate hypernym: anime: any of various resins or oleoresins → 0
Candidate hypernym: anticholinergic: a substance that opposes or blocks the action of acetylcholine → 0