15-letter words containing h, y, p, o, n, i
- symphony writer — a composer of an extended large-scale orchestral composition, usually with several movements, at least one of which is in sonata form
- thraco-phrygian — a hypothetical branch of Indo-European implying a special genetic affinity between the meagerly attested Thracian and Phrygian languages.
- uncopyrightable — not able to be copyrighted
- vine phylloxera — a homopterous insect, Phylloxera vitifolia, typically feeding on vine juices