eternal:1

adjective
eter*nal \ i-ˈtər-nᵊl \
14th century{ds||1|a|}
  • having infinite duration : everlasting
  • of or relating to eternity
  • characterized by abiding fellowship with God

eternal:2

noun
eternal \
1573{ds||1||}
  • god —used with the
  • something eternal

eternal flame

noun
eternal flame \
  • a small fire that is kept burning as a symbol to show that something will never end
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