From Longman Dictionary of Contemporary Englishin all/everything but namein all/everything but nameREAL/NOT IMAGINARYif something is true in all but name, it is really true, even though people do not officially say that it is true She was his wife in all but name. → name
Examples from the Corpus
in all/everything but name• The players should therefore be treated like the professionals they are in all but name, and be paid for their work.• Since then the craggy little republic of 650,000-odd people has been independent in all but name.• I always feel they are open meetings in everything but name.• Soon Jack and Courtney's marriage was also over in everything but name. 