Strong’s Greek
G3655 — ombros
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ὄμβρος
ombros — pronounced om'-bros
of uncertain affinity; a thunder storm:--shower.
1 occurrence in the KJV.
Luke 12:54
And he said also to the people, When ye see a cloud rise out of the west, straightway ye say, There cometh a shower; and so it is.