O-shaped
Like a doughnut
Shaped like the letter O—circular, oval, or forming a closed round curve.
The term describes anything with this configuration: an O-shaped mouth opened in surprise, an O-shaped ring, an O-shaped swimming pool.
In phonetics, an O-shaped mouth produces certain rounded vowel sounds.
Numerical absence of quantity
- letter OFifteenth alphabet character
- numeralSymbol denoting quantity
- typefaceLettering style design
- fontCharacter style set
typography · vowel · alphabet · character · glyph · symbol · serif · uppercase
Forming a closed curve
- roundCurved like circle
- ringClosed curve shape
- ovalElongated rounded shape
- ellipticalOval-shaped or indirect
curved · loop · annular · toroidal · spherical · cylindrical · rounded · orbital
zero
Numerical absence of quantity
font · typography · vowel · alphabet · character · glyph · symbol · serif · uppercase · lowercase
circular
Forming a closed curve
elliptical · curved · loop · annular · toroidal · spherical · cylindrical · rounded · orbital · concentric
ring
Closed curve shape
hula hoop · wreath · lifesaver · washer · gasket · porthole · hoop · bracelet · collar · grommet
mouth
Oral opening
vowel · puckered · yawning · gaping · open-mouthed · pursed · embouchure · whistling · blowing · sucking