Pronunciation

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Plain form
sicken

Third-person singular
sickens

Past tense
sickened

Past participle
sickened

Present participle
sickening

  1. (transitive) If something sickens you, it makes you sick; this often means making your stomach sick, so that you might vomit.
    The infection will sicken him until amputation is needed.
  2. (transitive) If something sickens you, it is very bad and you hate it.
    It sickens me when people don't wash their hands after they use the toilet.
  3. (intransitive) If you sicken you become sick, or you become more sick.
    He will sicken if he doesn't get medicine soon.

Synonyms

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