I think the character does double service in that it has meanings which are very much mouth-related - 薄口 (thin-mouthed - like weak taste) 後口 (after-mouth - afte

I think the character does double service in that it has meanings which are very much mouth-related - 薄口 (thin-mouthed - like weak taste) 後口 (after-mouth - after taste); but it also has a ton of meanings which are like opening / spout / hole / crater. http://compling.hss.ntu.edu.sg/omw/cgi-bin/wn-gridx.cgi?usrname=&gridmode=wnja&lang=jpn&lang2=eng&lemma=%E5%8F%A3 http://compling.hss.ntu.edu.sg/omw/cgi-bin/wn-gridx.cgi?usrn... It's not that a land's-mouth is a crater, more like, mouth and opening are more synonymous in feeling in Japanese.