#alcion
- Halcyon — A poetic or mythological designation given to the kingfisher bird or to a legendary seabird that, according to ancient Greek myths, built its nest on sea waves during the winter solstice, with the god Aeolus calming the winds to protect its eggs (halcyon days). It symbolizes peace, tranquility, serenity, and deep natural harmony.
- Alcyone — The Romanian form of the mythological name Alcyone, daughter of Aeolus and wife of Ceyx. Devastated by her husband's death in a shipwreck, she threw herself into the sea, prompting the gods to transform them both into kingfishers (halcyons). In astronomy, it refers to the brightest star in the Pleiades open cluster (Eta Tauri), located in the Taurus constellation.
- Alcyoneus — The Romanian form of the name Alcyoneus, the eldest and most powerful of the Giants in Greek mythology, born from Gaia (Earth) and the blood droplets of Uranus. He was immortal as long as he fought on his native soil of Pallene, eventually defeated by Heracles, who dragged him beyond his homeland's borders on Athena's advice to pierce him with arrows.
- Halcyon — Pertaining to the halcyon bird, the mythological seabird, or the legend of Alcyone; characterized by absolute calm, serenity, profound peace, and natural harmony. It is a stylistic variant of the adjective 'alcionic', primarily utilized in literary registers or old poetic translations to describe calm seascapes or states of absolute inner peace.
- Halcyon — Pertaining to the halcyon bird or to the days around the winter solstice when the sea becomes unusually calm; calm, serene, peaceful. In a figurative and literary sense, the term describes a period of absolute tranquility, carefree happiness, or a completely undisturbed atmospheric and spiritual climate.
- Alcyoneus — In Greek mythology, the eldest and most powerful of the Giants born to Gaia, famous for his immortality as long as he fought on his native soil. In astronomy, the name designates a recently discovered giant radio galaxy, considered one of the largest structures of galactic origin identified in the universe, spanning approximately 5 megaparsecs.