go down below the surface of something, especially of a liquid; become submerged

he saw the coffin sink below the surface of the waves

descend from a higher to a lower position; drop downwards

you can relax on the veranda as the sun sinks low

gradually decrease or decline in value, amount, quality, or intensity

their output sank to a third of the pre-war figure

insert beneath a surface

rails fixed in place with screws sunk below the surface of the wood

rapidly consume (an alcoholic drink)

they must have sunk a bit of booze yesterday

the players were sinking a few post-match lagers

a fixed basin with a water supply and outflow pipe

I stood at the kitchen sink

a sink unit with cupboard and drawers under

a pool or marsh in which a river's water disappears by evaporation or percolation

a place of vice or corruption

a sink of unnatural vice, pride, and luxury