Meanings

to open one's mouth (to talk)

to keep one's mouth shut

oral literature

words can lead to disaster

people will talk

people will talk

entrance door

vignetting

aperture ratio (inverse of the f-number)

mouth shaped like a kana "he" character

blastopore

deuterostome

thirst

deuterostome

protostome

protostome

historical demography

entrance

colloquial grammar

working-age people who are unemployed