noun The season after winter and before summer, in which vegetation begins to appear, in the northern hemisphere from March to May and in the southern hemisphere from September to November. (in spring the garden is a feast of blossom) A resilient device, typically a helical metal coil, that can be pressed or pulled but returns to its former shape when released, used chiefly to exert constant tension or absorb movement. A sudden jump upward or forward. (with a sudden spring, he leapt onto the table) A place where water or oil wells up from an underground source, or the basin or flow formed in such a way. (spring water) An upward curvature of a ship's deck planking from the horizontal.
verb Move or jump suddenly or rapidly upward or forward. (I sprang out of bed) Originate or arise from. (madness and creativity could spring from the same source) Cushion or fit (a vehicle or item of furniture) with springs. (a fully sprung mattress) (especially of wood) become warped or split. Pay for, especially as a treat for someone else. (he's never offered to spring for dinner)