口 - mouth

taciturn; reticent; quiet; silent; untalkative

number of words a person speaks

mouth of river; estuary

south entrance; south exit

big mouth; mouth opened wide

each and every person (saying); one and all; unanimously; in unison; separately; individually

exit; way out

frontage; width (of a building, plot of land, etc.)

beginning of autumn; beginning of fall

clever; intelligent; bright; smart; wise; sensible; shrewd

mouthful; morsel; bite

way of reciting; way of telling a story