Strong’s Greek
G1798 — enupnion
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἐνύπνιον
enupnion — pronounced en-oop'-nee-on
from 1722 and 5258; something seen in sleep, i.e. a dream (vision in a dream):--dream. see GREEK for 1722 see GREEK for 5258
1 occurrence in the KJV.
Acts 2:17
And it shall come to pass in the last days, saith God, I will pour out of my Spirit upon all flesh: and your sons and your daughters shall prophesy, and your young men shall see visions, and your old men shall dream dreams: