Term: semicentennial: the 50th anniversary (or the celebration of it)
Candidate hypernym: fundamental quantity: one of the four quantities that are the basis of systems of measurement → 1
Candidate hypernym: hydrastis: small genus of perennial herbs having rhizomes and palmate leaves and small solitary flowers; of northeastern United States and Japan → 0
Candidate hypernym: laying: the production of eggs (especially in birds) → 0
Candidate hypernym: snuffbox fern: fern of northeastern North America → 0
Candidate hypernym: demon: someone extremely diligent or skillful → 0
Candidate hypernym: swan orchid: any of several orchids of the genus Cycnoches having slender arching columns of flowers suggesting the neck of a swan → 0
Candidate hypernym: demonstrator: a teacher or teacher's assistant who demonstrates the principles that are being taught → 0
Candidate hypernym: storm signal: a signal announcing the approach of a storm (particularly a storm of marked violence) → 0
Candidate hypernym: great grandson: a son of your grandson or granddaughter → 0
Candidate hypernym: refrigeration system: a cooling system for chilling or freezing (usually for preservative purposes) → 0
Candidate hypernym: peripatidae: a family of Onychophora → 0