worst >> wəːst
Definition: [adjective] of the poorest quality or the lowest standard; least good or desirable.
Example: he was the company's worst driver
Definition: [adverb] most severely or seriously.
Example: manufacturing and mining are the industries worst affected by falling employment
Definition: [noun] the most serious or unpleasant thing that could happen.
Example: when I saw the ambulance outside her front door, I began to fear the worst
Definition: [verb] get the better of; defeat.
Example: this was not the time for a deep discussion—she was tired and she would be worsted