n. The bags and other containers that hold a traveller's belongings.
n. The contents of such containers.
the GNU version of the Collaborative International Dictionary of English
n. That which is lugged; anything cumbrous and heavy to be carried; especially, a traveler's trunks, baggage, etc., or their contents.
The Century Dictionary and Cyclopedia
n. Anything to be carried that is cumbersome and heavy.
n. Baggage; especially, a traveler's baggage.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. cases used to carry belongings when traveling
Word Usage
"If the customs officer snatches a piece of my luggage, it will in general itself be luggage; if adoring groupies snatch an article of my clothing, it will be clothing; for ˜luggage™ and ˜clothing™ are mass nouns."