1 Yan, a vassal state of Zhou in modern Hebei and Liaoning

2 north Hebei

3 the four Yan kingdoms of the Sixteen Kingdoms, namely: Former Yan 前燕 (337-370), Later Yan 後燕|后燕 (384-409), Southern Yan 南燕 (398-410), Northern Yan 北燕 (409-436)

4 surname Yan

1 swallow

1 Stefanie Sun (1978-), Singaporean singer-songwriter

1 Yanjing, an old name for Beijing

2 capital of Yan at different periods

1 swallow tail butterfly (family Papilionidae)

1 lit. the goose comes, the swallow goes (idiom); fig. always on the move

1 the shrike and the swallow fly in different directions (idiom)

2 (usually of a couple) to part from each other

1 the swallow's nest is built one beakful of mud at a time (idiom)

2 many a little makes a mickle

1 lit. can the sparrow and swallow know the will of the great swan? (idiom)

2 fig. how can we small fry predict the ambitions of the great?

1 lit. can the sparrow and swallow know the will of the great swan? (idiom); fig. how can we small fry predict the ambitions of the great?