blue; like the color of a clear sky

(bound form) throat; larynx; often referred to as 喉咙 hóu​lóng or 喉头 hóu​tóu

(bound form) immortal; celestial being; a person who has attained longevity or supernatural powers through meditation or alchemy; see 神仙 shén​xiān or 仙人 xiān​rén

(bound form) flycatcher; any of various small birds that catch insects in mid-air