O - Similar and Opposite Words

What is another word for O ?

Here are the synonyms for O , a list of similar words for O from our thesaurus that you can use

Noun

the blood group whose red cells carry neither the A nor B antigens

Synonyms

• O
• group O
• type O

More generic

• blood group
• blood type

Noun

the 15th letter of the Roman alphabet

Synonyms

• O

More generic

• alphabetic character
• letter
• letter of the alphabet

Related

• Latin alphabet
• Roman alphabet

Noun

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

Synonyms

• O
• atomic number 8
• oxygen

More generic

• chemical element
• element
• gas

More specific

• LOX
• liquid oxygen

Related

• H2O
• air
• ozone
• water

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