- a domed circular temple at Rome, erected a.d. 120–124 by Hadrian, used as a church since a.d.
- (lowercase) a public building containing tombs or memorials of the illustrious dead of a nation.
- (lowercase) the place of the heroes or idols of any group, individual, movement, party, etc., or the heroes or idols themselves: to earn a place in the pantheon of American literature.
- (lowercase) a temple dedicated to all the gods.
- (lowercase) the gods of a particular mythology considered collectively.
- (esp in ancient Greece or Rome) a temple to all the gods
- all the gods collectively of a religion
- a monument or building commemorating a nation’s dead heroes
- a circular temple in Rome dedicated to all the gods, built by Agrippa in 27 bc, rebuilt by Hadrian 120–24 ad, and used since 609 ad as a Christian church
n.c.1300, from Pantheon, name of a temple for all the gods built in Rome c.25 B.C.E. by Agrippa (since 609 C.E. made into the Christian church of Santa Maria Rotonda), from Greek Pantheion (hieron) “(shrine) of all the gods,” from pantheion, neuter of pantheios, from pan- “all” (see pan-) + theios “of or for the gods,” from theos “god” (see Thea). Sense of any group of exalted persons is first found 1590s.