- Adjective. Motivated by Islamic beliefs, particularly in the political sphere (e.g. a supporter of the introduction of sharia law).
- Adjective. (dated) Relating to Islam, particularly orthodox Islam.
- Noun. A person who espouses Islamic fundamentalist beliefs.
- Noun. (''somewhat rare'') A person who specializes in Islamic studies.
- Noun. (dated) A Muslim, particularly an orthodox Muslim.