What does multi-faith and interfaith mean?
Multi-faith: involving, relating to, or made up of people of more than one religion.
To be multi-faith is to feel an affinity with aspects of more than one religion, philosophy or world-view, or to believe that none of them is superior to the others.
Interfaith: involving persons of different religious faiths.
Interfaith dialogue refers to cooperative, constructive, and positive interaction between people of different religious traditions (i.e. "faiths") and/or spiritual or humanistic beliefs, at both the individual and institutional levels. It is distinct from syncretism (the amalgamation or attempted amalgamation of different religions, cultures, or schools of thought) or alternative religion, in that dialogue often involves promoting understanding between different religions or beliefs to increase acceptance of others, rather than to synthesize new beliefs.
Interfaith is a "see also" of multi-faith.
As adjectives the difference between interfaith and multi-faith is that interfaith is involving members of different religions while multi-faith is feeling an affinity with aspects of more than one religion, philosophy or world-view, and to believe that no one is superior to the others.