G3701–ὀπτασία–optasia

And when he came out, he could not speak to them: and they perceived that he had seen a vision in the temple; for he beckoned to them, and remained speechless.

ὀπτασίαν optasian “a vision”

And when they found not his body, they came, saying, that they had also seen a vision of angels, who said that he was alive.

ὀπτασίαν optasian “a vision”

Upon which O king Agrippa, I was not disobedient to the heavenly vision.

ὀπτασίᾳ, optasia “vision,”

It is not expedient for me doubtless to glory. I will come to visions and revelations of the Lord.

ὀπτασίας optasias “visions”