口

A mouth is an enclosure for your food.
by sderby

Your mouth is an enclosure for your tongue.
by dcloobeck

When a mouth is open it looks like a box.
by csantry

РОТ, ОТВЕРСТИЕ
by VSL

When you said, your mouth is opening and the shape of mouth like a circle. A circle in Chinese character was described by a square.
by svo_set06

Your tongue is enclosed in your mouth
by ljohnson48

The MOUTH is wide open.
by dosemobor915

The box is so big, food can fit inside so it's a mouth.
by asala2018

The mouth emits the story that needs to be said
by nbreck

It looks like the mouth of a koi fish. °口°
by Casper07x

mouth of cave
by cosemobor

A picture of a mouth.
by Prismcool

the mouth of the cave
by pkulesh33

A mouth is round when open and a box goes around like a circle
by connor0604

Your mouth is an opening.
by pscanlan

The open mouth looks rectangular.
by aramachandran2

The orifice or opening through which something may pass.
by EloraK

the mouth is open
by pls18