AV - vain 9, in vain 4, empty 4, vain things 1; 18
1) empty, vain, devoid of truth
1a) of places, vessels, etc. which contain nothing
1b) of men
1b1) empty handed
1b2) without a gift
1c) metaph. destitute of spiritual wealth, of one who boasts of his faith as a transcendent possession, yet is without the fruits of faith
1d) metaph. of endeavours, labours, acts, which result in nothing, vain, fruitless, without effect
1d1) vain of no purpose