o   (TTS Sound)

The o has 3 Senses.

• atomic number 8, o, oxygen
• 酸素, O
• 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価の非金属元素で、通例無色、無臭、無味の不燃性の二原子気体

• o
• the 15th letter of the Roman alphabet
• ローマ字の15番目の文字

• type o, o, group o
• the blood group whose red cells carry neither the A nor B antigens; "people with type O blood are universal donors"
• 赤血球にA抗原もB抗原も持たない血液型