Guangyun and Jiyun pronounce it using the syllables for gao, resulting in the pronunciation gao (third tone). It means a vast and bright marsh.
Also, Jiyun pronounces it using the syllables for shi, resulting in the pronunciation shi (fourth tone). The meaning is the same as the previous entry.
Also, it is pronounced using the syllables for zhai, resulting in the pronunciation zhai (second tone). Explaining the Characters and Writing (Shuowen Jiezi) defines it as bright and moist.
Also, Jade Chapter (Yupian) records that this is the ancient form of the character for marsh. For detailed notes, see the Water radical, fourteen strokes. One variant form is as shown. Another variant form is as shown. The original form of the character consists of the radical for slash, the element for ridge, and the element for big. Another original form of the character consists of the element for fontanelle and the element for big.