雩
yúyù

offer sacrifice for rain

Senses

雩 yú rain sacrifice

(bound form) ancient sacrificial ceremony performed to pray for rain

雩 yù rainbow

(literary) another name for a rainbow

雩 yú Yudu

used in historical place names, such as Yudu County (now written as 于 yú都 dū) in Jiangxi Province

References

same_as 雩/雩 → 虹/虹
see 雩/雩 → 于都/于都