/sɪŋk/v[I/T](past tensesank/sæŋk/ or sunk/sʌŋk/, past participlesunk/sʌŋk/)(FALL)
›to fall or move to a lower level: [I]The sun sank slowly below the horizon.[I]Exhausted after the race, she sank to the ground.[I]My feet sink into the sand with every step.[I]Gasoline prices sank last year.[I]Relations between the countries have sunk to a new low.›To sink a ball is to hit it into a hole, as in golf and pool, or throw it through a hoop (= ring with a net) in basketball.sink their teeth into›People or animals who sink their teeth into something bite hard: I sank my teeth into the sandwich.