O: Letter of the Latin alphabet
O is the fifteenth (number 15) letter in the English alphabet and it has a shape of a circle.
| The Latin alphabet | |||||
|---|---|---|---|---|---|
| Aa | Bb | Cc | Dd | ||
| Ee | Ff | Gg | Hh | Ii | Jj |
| Kk | Ll | Mm | Nn | Oo | Pp |
| Rr | Ss | Tt | Uu | Vv | |
| Ww | Xx | Yy | Zz | ||
Meanings for O
- On calendars, O sometimes means the month October.
- In chemistry, O is the symbol for oxygen.
- In medicine, O is one of the human blood types.
- Sometimes when saying decimals, O is another word for zero.
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