dame

Compared meaning: a polite word for a woman (noun).

比较义项：对女士的礼貌称呼／泛指“女士，妇女”（名词）。

• lady

  The most common, neutral polite word for a woman; used constantly in everyday speech without sounding formal like madam or old-fashioned like dame.

  lady 是最普通、语气中性的说法，日常口语中大量使用，不像 madam 那样正式，也不像 dame 那样过时。

  My grandmother is a lovely old lady who always brings cookies to dinner.

  我祖母是一位可爱的老 lady，总是在晚餐时带饼干来。

• dame 本词

  An old-fashioned, informal word for a woman, often used affectionately or humorously, especially about an older woman; sounds dated in ordinary modern speech.

  dame 是老式、口语化的说法，常带亲切或诙谐意味，多见于旧时电影或戏谑语气，现代日常口语中较少使用。

  In old detective movies, tough guys often called a mysterious woman a dame.

  在老侦探电影里，硬汉们常把神秘女子叫做 dame。

• madam

  A formal, polite term used mainly to address a woman directly, especially by service staff or strangers; sounds respectful but more distant than lady.

  madam 是正式礼貌的称呼语，主要用于直接称呼一位女士，常见于服务行业或陌生人之间的场合，比 lady 更显得客气而有距离感。

  The shop assistant said, 「Right this way, madam,」 guiding the customer to her seat.

  店员说「这边请，madam」，把顾客带到她的座位上。

Lady is the most common, neutral, polite word for a woman, used in speech. Dame is old-fashioned and informal, often used about an older woman, and sounds dated. Madam is formal, used to address a woman directly, especially by service staff, sounding polite but distant.

这三个词在这个意义上都可以指“一位女士”，但语气和使用场合不同：lady 是最常用、中性礼貌的说法；dame 略显老式、口语化，现代英语中较少使用，带一点随性甚至戏谑的味道；madam 主要用作正式礼貌的称呼语，尤其是服务场合，语气比日常交谈更显得客气而有距离感。