O (Noun)
Meaning 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.
Classification
Nouns denoting substances.
Synonyms
Hypernyms
Hyponyms
Meaning 2
The 15th letter of the Roman alphabet.
Classification
Nouns denoting communicative processes and contents.
Examples
- The child was practicing writing the letter O on her worksheet.
- In Morse code, the letter O is represented by three dashes.
- The calligrapher's flourishing style made the O's look like artistic creations.
- When sounding out words, students should remember that O can make a short or long sound.
- Typographers pay attention to the way the letter O is rendered in different fonts to ensure consistency.
Synonyms
Hypernyms
Meaning 3
The blood group whose red cells carry neither the A nor B antigens; "people with type O blood are universal donors".
Classification
Nouns denoting body parts.