1. [adjective] Of, or relating to Pentecost
2. [adjective] Of, or relating to a Christian religious movement that emphasizes the Holy Spirit
3. [noun] A member of a Pentecostal church.
4. [noun] (obsolete) An offering formerly made to the parish priest, or to the mother church, at Pentecost.
5. [noun] Any member of a Pentecostal religious body.
6. [adjective] Of or relating to or characteristic of any of various Pentecostal religious bodies or their members.
7. [adjective] Of or relating to or occurring at Pentecost.