Meaning: [əʊ] 
n. 1. a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust 2. the 15th letter of the Roman alphabet 3. the blood group whose red cells carry neither the A nor B antigens.
n. 1. a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust 2. the 15th letter of the Roman alphabet 3. the blood group whose red cells carry neither the A nor B antigens. 
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1. O liberty, how many crimes have been committed in thy name! 
2. The year 1705 is usually pronounced seventeen o five.
3. She's got 10 O levels.
4. The inspector chalked O.K. on my baggage.
5. We'll stop now and resume at two o 'clock.
6. My phone number is six o four double two .
7. O.K. I'll sign off. We'll talk at the beginning of the week.
8. He's got an O level in Russian.
9. The chemical formula for water is H 2 O.
10. O is the chemical symbol for oxygen.
11. O Zeus! Hear my prayer.
12. Bicycle for sale: ￡60 o.n.o.
12. Wish you will love sentencedict.com and make progress everyday!
13. O Lord, in you I put my trust.
14. We bless your holy name, O Lord.
15. "I'd like to be alone, O.K?" — "Sure. O.K.".
16. The line AB intersects the line CD at O.
17. "Any problems?" — "No, I'm O.K."
18. Write to P.O. Box 714, Key Largo, Florida.
19. She took six subjects at O level.
20. 'Orange' begins with O / 'O'.
21. O God,[sentencedict.com] I want to go home.
22. The child's mouth formed a big O in surprise.
23. 'O.O.B.E.' is short for 'Out Of Body Experience'.
24. O levels were replaced by GCSEs in 1988.
25. My blood type is O positive.
26. It's O.K. I smoothed things out.
27. We praise thy name, O Lord.
28. My number is six o double three .
29. He is so crazy about U.F.O.that he laps up all he can read about it.
30. It took us two hours to complete the calculation, so we logged off at 4 o 'clock.