הֶבֶל (hebel) is
a Hebrew noun
meaning vapour. It appears
73 times
in 12 books of the Hebrew Bible
(Strong's H1892).
Also rendered
vanity
Same Hebrew root (TWOT 463a)
Range of meaning (TWOT 463a)vapour, breath; emptiness, vanity, transitory, unsatisfactory; vain
Full entry: Brown-Driver-Briggs and Strong's
הֶ֫בֶלnoun, masculine: vapour, breath
Strong's H1892הֶבֶל: emptiness or vanity; figuratively, something transitory and unsatisfactory; often used as an adverb KJV:× altogether, vain, vanity.
Meanings: Brown-Driver-Briggs (1906) and Strong's Hebrew Dictionary (1890), public domain, via the Open Scriptures Hebrew Bible Project (CC BY 4.0). TWOT numbers for reference only.
Root family 463: הָבַלhābal — act emptily, become vain; be vain, lead astray