the GNU version of the Collaborative International Dictionary of English
n. A Mohammedan who has made a pilgrimage to Mecca; -- used among Orientals as a respectful salutation or a title of honor.
n. A Greek or Armenian who has visited the holy sepulcher at Jerusalem.
The Century Dictionary and Cyclopedia
n. A Mussulman who has performed his hadj, or pilgrimage to Mecca, and who afterward bears the designation as a title of honor: as, Hadji Khalfa.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. an Arabic term of respect for someone who has made the pilgrimage to Mecca
Word Usage
"For instance, Mike Totten, speaking at the 2008 Winter Soldier hearings in Washington, D.C., discussed how the Army twisted the word "hadji," which means an Islamic religious pilgrim, into the "gook" stand-in of the Iraq war."