Smith’s Bible Dictionary
Dictionary of National Biography
Urban Dictionary
The New Grove Dictionary of Opera
The Cambridge Dictionary of Philosophy
Grove Dictionary of Music and Musicians
Oxford Dictionary of Byzantium
Oxford Classical Dictionary
The Sleeping Dictionary
Oxford English Dictionary
Dorland medisinske oppslagsverk
Australian Dictionary of Biography
Dictionary of the Middle Ages
A Short Biographical Dictionary of English Literature
Digital Dictionary of Buddhism
Jargon File
BuildingSMART