dizzy

Compared meaning: feeling physically unwell (adjective).

比较义项：感觉身体不适（形容词）。

• sick

  Describes a queasy stomach and the urge to vomit, often from food, smells, or motion; a specific symptom, not general illness.

  指胃里翻腾、想呕吐的感觉，常由食物、气味或晕动引起；是一种具体的身体症状，而不是笼统的生病状态。

  The strong smell of the fish made her feel sick.

  那股浓烈的鱼腥味让她感到恶心想吐。

• ill

  A more general and slightly more formal word for being unwell or having an illness, often more serious or longer-lasting than a single symptom.

  泛指身体不健康或患病，语气比sick稍正式，通常指比单一症状更严重或持续更久的病况。

  He has been seriously ill with a fever for a week.

  他发烧了，已经病得很严重一个星期了。

• dizzy 本词

  Describes a spinning, unsteady sensation in the head, often linked to loss of balance rather than nausea or general sickness.

  指头部旋转、站不稳的感觉，多与失去平衡有关，而不是恶心或泛指的生病。

  Standing up too fast left him feeling dizzy and off balance.

  他起身太快，感到头晕、站不稳。

Sick, ill, and dizzy can describe feeling unwell. Sick means nauseous, wanting to vomit. Ill is a general, slightly formal word for being unwell. Dizzy means your head spins and you feel unsteady. Not compared: sick as 'tired of' and ill as 'harmful'.

这三个词都能用来描述身体不舒服，但侧重不同：sick强调恶心、想吐，ill泛指生病、身体不健康，dizzy强调头晕、站不稳。这里不比较sick表示「厌烦」（如be sick of）或ill作「有害的、恶劣的」（如ill effects）等其他用法。