Definitions

1. noun

A double bass, a large stringed musical instrument.

“The orchestra’s bd player was exceptional.”

2. noun

A bound book, especially a hardcover book.

“I just bought a new bd of that bestseller.”

3. noun

An abbreviation for bedtime.

“It’s time for bd, let’s go to sleep.”

4. noun

An abbreviation for birthday.

“Don’t forget to write a card for her bd today.”