a small migratory bird with long wings and a forked tail, commonly known as 燕子 yàn​zi

a vassal state during the Zhou dynasty and one of the seven warring states, located in present-day northern Hebei and western Liaoning

(bound form) to host a dinner party; also refers to comfort, joy, or leisure

a literary or historical name for the Hebei region

a Chinese surname

the Five Yan kingdoms during the Sixteen Kingdoms period (337–436), including Former Yan, Later Yan, Southern Yan, Northern Yan, and Western Yan