Definition of opa in English:

opa

(also opah)

noun

North American
  • Originally among German and Dutch communities: a grandfather.

Origin

1940s; earliest use found in German Quarterly. Either from German Opa, hypocoristic form (perhaps via Opapa) of Großpapa grandpa, grandfather, or from Dutch opa, hypocoristic form of grootpapa grandpa, grandfather.

Pronunciation

opa

/ˈəʊpə/