Ｂ

noun

B; b

The letter B itself, used as a noun (e.g., grades, blood types, musical notes, or labels).

• 彼かれの成せい績せきはオールＢだ。

  His grades are all B's.

• 血けつ液えき型がたはＢ型びーがたです。

  My blood type is B.

noun

basement floor

Abbreviation used in floor numbering, as in B1F (basement first floor).

• 会かい場じょうはＢ１Ｆです。

  The venue is on the B1 floor.