from The American Heritage® Dictionary of the English Language, 4th Edition
- adv. Music Again; twice. Used as a direction to repeat a passage.
- interj. Used to request an additional performance.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Plural form of bi.
from the GNU version of the Collaborative International Dictionary of English
- adv. Twice; -- a word showing that something is, or is to be, repeated; as a passage of music, or an item in accounts.
from The Century Dictionary and Cyclopedia
French or Italian, both from Latin; see dwo- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)