Behold they are all vanity
'aven  (aw-ven')
to come to naught); strictly nothingness; also trouble. vanity, wickedness; specifically an idol
their works
ma`aseh  (mah-as-eh')
an action (good or bad); generally, a transaction; abstractly, activity; by implication, a product (specifically, a poem) or (generally) property
are nothing
'ephec  (eh'-fes)
cessation, i.e. an end (especially of the earth); often used adverb, no further; also the ankle (in the dual), as being the extremity of the leg or foot
their molten images
necek  (neh'-sek)
a libation; also a cast idol -- cover, drink offering, molten image.
are wind
ruwach  (roo'-akh)
wind; by resemblance breath, i.e. a sensible (or even violent) exhalation; figuratively, life, anger, unsubstantiality; by extension, a region of the sky; by resemblance spirit, but only of a rational being
and confusion
tohuw  (to'-hoo)
a desolation (of surface), i.e. desert; figuratively, a worthless thing; adverbially, in vain -- confusion, empty place, without form, nothing, (thing of) nought, vain, vanity, waste, wilderness.