Term: aviation: the operation of aircraft to provide transportation
Broader: social group: people sharing some social relation | Unrelated: pica: magpies
Broader: social group: people sharing some social relation | Unrelated: face veil: a piece of more-or-less transparent material that covers the face
Broader: social group: people sharing some social relation | Unrelated: avocado: tropical American tree bearing large pulpy green fruits
Broader: social group: people sharing some social relation | Unrelated: hydnum: type genus of Hydnaceae
Broader: social group: people sharing some social relation | Unrelated: tsimshian: a Penutian language spoken by the Tsimshian
Broader: social group: people sharing some social relation | Unrelated: organic compound: any compound of carbon and another element or a radical
Broader: social group: people sharing some social relation | Unrelated: tetracycline: an antibiotic (trade name Achromycin) derived from microorganisms of the genus Streptomyces and used broadly to treat infections
Broader: social group: people sharing some social relation | Unrelated: penumbra: a fringe region of partial shadow around an umbra
Broader: social group: people sharing some social relation | Unrelated: prince's-feather: annual with broadly ovate leaves and slender drooping spikes of crimson flowers; southeastern Asia and Australia; naturalized in North America
Broader: social group: people sharing some social relation | Unrelated: superposition: (geology) the deposition of one geological stratum on another