Strong's Concordance

Original word: ἀτμίς
Transliteration: atmis
Definition (short): vapor
Definition (full): vapor

NAS Exhaustive Concordance

Word Origin: of uncertain origin
Definition: vapor
NASB Translation: vapor (2).
NAS Exhaustive Concordance of the Bible with Hebrew-Aramaic and Greek Dictionaries.
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Strong's Exhaustive Concordance

From the same as aer; mist -- vapour.

see GREEK aer

KJV: And I will shew wonders in heaven above, and signs in the earth beneath; blood, and fire, and vapour of smoke:
NASB: 'AND I WILL GRANT WONDERS IN THE SKY ABOVE AND SIGNS ON THE EARTH BELOW, BLOOD, AND FIRE, AND VAPOR OF SMOKE.
KJV: Whereas ye know not what shall be on the morrow. For what is your life? It is even a vapour, that appeareth for a little time, and then vanisheth away.
NASB: Yet you do not know what your life will be like tomorrow. You are just a vapor that appears for a little while and then vanishes away.