G3701–ὀπτασία–optasia

When, however, he came out, he was unable to speak to them; and they knew that he must have seen a vision in the Sanctuary; but he kept making signs to them and continued dumb.

ὀπτασίαν optasian “a vision”

and, finding that His body was not there, they came and declared to us that they had also seen a vision of angels who said that He was alive.

ὀπτασίαν optasian “a vision”

"Therefore, King Agrippa, I was not disobedient to the heavenly vision;

ὀπτασίᾳ, optasia “vision,”

I am compelled to boast. It is not a profitable employment, but I will proceed to visions and revelations granted me by the Lord.

ὀπτασίας optasias “visions”