"halcyon" in the noun sense
1. Alcyone, Halcyon
Greek mythology) a woman who was turned into a kingfisher
2. Halcyon, genus Halcyon
a large kingfisher widely distributed in warmer parts of the Old World
a mythical bird said to breed at the time of the winter solstice in a nest floating on the sea and to have the power of calming the winds and waves
"halcyon" in the adjective sense
idyllically calm and peaceful suggesting happy tranquillity
"a halcyon atmosphere"
2. golden, halcyon, prosperous
marked by peace and prosperity
"a golden era"
"the halcyon days of the clipper trade"
Source: WordNet® (An amazing lexical database of English)
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