This root form (lemma) is used in 3 different forms in the NT: ὀπτασίαν (AFS), ὀπτασίας (AFP), ὀπτασίᾳ (DFS).
It is glossed in 3 different ways: ‘a vision’, ‘vision’, ‘visions’.
OET LUKE 1:22 Greek word=ὀπτασίαν (optasian) Morphology=AFS English gloss=‘a vision’ SR GNT LUKE 1:22 word 11
OET LUKE 24:23 Greek word=ὀπτασίαν (optasian) Morphology=AFS English gloss=‘a vision’ SR GNT LUKE 24:23 word 11
OET ACTS 26:19 Greek word=ὀπτασίᾳ (optasia) Morphology=DFS English gloss=‘vision’ SR GNT ACTS 26:19 word 9
OET 2COR 12:1 Greek word=ὀπτασίας (optasias) Morphology=AFP English gloss=‘visions’ SR GNT 2COR 12:1 word 15