sunk
adj.adj. the past form of 'sink'. You use it when something has gone under water or dropped to a lower level.
adj. the past participle of 'sink'. Often used in the passive voice or as a participial adjective to describe objects that have descended below the surface of a liquid.
The heavy stone has sunk to the bottom of the lake.
By the time the rescue team arrived, the small fishing boat had already sunk beneath the waves.
The realization that the project was doomed finally sunk in after the third round of funding was officially denied by the board.
Functions as the past participle of the irregular verb 'sink'.
The boat sanked yesterday.The boat sank yesterday.Learners often confuse the past simple 'sank' with the past participle 'sunk', or try to apply regular '-ed' endings to this irregular verb.