noon

Compared meaning: the middle of the day, around 12 o'clock (noun).

比较义项：一天中的正午、中午时分（名词）。

• noon 本词

  Noon names the exact clock time of 12:00 and appears in formal scheduling and fixed idioms such as "high noon"; it is rarely used as a modifier before another noun.

  noon 指精确的十二点整，常用于正式的时间安排和固定习语（如 high noon），很少放在名词前作修饰语。

  The final showdown in the film takes place at high noon in a dusty western town.

  电影中最后的对决发生在一个尘土飞扬的西部小镇的正午时分。

• midday

  Midday refers more loosely to the middle stretch of the day around noon and commonly modifies nouns, as in "midday sun" or "midday break".

  midday 更笼统地指正午前后的一段时间，常放在名词前作修饰语，如 midday sun（正午的太阳）或 midday break（午间休息）。

  She always takes a short nap during her midday break at work.

  她总是在上班的午间休息时间小睡一会儿。

Noon and midday both mean the middle of the day. Noon is the exact time, 12:00, used in schedules and phrases like 'high noon'. Midday is looser, meaning the period around noon. Noon's sense of 'highest point' is not compared here.

这两个词都指一天正中的时刻，但语气和用法略有不同：noon 强调精确的十二点整，常见于正式安排和固定习语；midday 更笼统地指正午前后的一段时间，常放在名词前作修饰语。noon 还有“全盛期”之义，这里不作比较。