from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A motor coach; a bus.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A bus that is a motor vehicle, as opposed to earlier horse-drawn buses.
- n. The group of cyclists in a race who form a large group behind the leading peloton.
from The Century Dictionary and Cyclopedia
- n. An automobile omnibus; a vehicle propelled by its own motor and capable of carrying a dozen or more passengers.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a vehicle carrying many passengers; used for public transport
auto- + bus. (Wiktionary)