n. 25B6; verb
the coffin sank below the waves : BECOME SUBMERGED, be engulfed, go down, drop, fall, descend.
the cruise liner sank yesterday : FOUNDER, go under, submerge.
they sank their ships : SCUTTLE, send to the bottom; Brit. scupper.
the announcement sank hopes of a recovery : DESTROY, ruin, wreck, put an end to, demolish, smash, shatter, dash; informal put the kibosh on, put paid to; Brit. informal scupper; archaic bring to naught.
they agreed to sink their differences : IGNORE, overlook, disregard, forget, put aside, set aside, bury.
I sank myself in student life : IMMERSE, plunge, lose, bury.
the plane sank towards the airstrip : DESCEND, drop, go down/downwards.
the sun was sinking : SET, go down/downwards.
Loretta sank into an armchair : LOWER ONESELF, flop, collapse, drop down, slump; informal plonk oneself.
her voice sank to a whisper : FALL, drop, become/get quieter, become/get softer.
she would never sink to your level : STOOP, lower oneself, descend.
he was sinking fast : DETERIORATE, decline, go downhill, fade, grow weak, flag, waste away; be at death's door, be on one's deathbed, be slipping away; informal be on one's last legs, be giving up the ghost.
sink the pots into the ground : EMBED, insert, drive, plant.
sinking a gold mine : DIG, excavate, bore, drill.
(informal) he sank five pints of lager : DRINK, quaff; informal down, knock back, polish off; N. Amer. informal chug, scarf down.
they sank their life savings in the company : INVEST, venture, risk.
float, rise.
25B6; noun he washed himself at the sink : BASIN, washbasin, handbasin; dated lavabo.
25A0; sink in REGISTER, be understood, be comprehended, be grasped, get through.