devout

Compared meaning: deeply committed to religious faith (adjective).

比较义项：虔诚的、笃信宗教的（形容词）。

• religious

  A general, neutral word meaning having religious beliefs or practising a faith; it does not necessarily imply deep devotion, so someone can be described as religious without attending services strictly or believing fervently.

  泛指有宗教信仰、信奉某种宗教的中性词；并不一定表示虔诚投入，因此一个人可以被称为『religious』，却不严格参加宗教活动或信仰并不狂热。

  He grew up in a religious household, though he never went to church much himself.

  他在一个信教的家庭里长大，尽管自己不怎么去教堂。

• devout 本词

  Stronger and more emphatic than religious, stressing deep, sincere, wholehearted devotion to one's faith; it often collocates with a specific religion, as in devout Catholic or devout Muslim, which religious rarely does.

  语气比religious更强，强调对信仰全心、深切而真诚的投入；常与具体宗教搭配，如devout Catholic或devout Muslim，而religious很少这样使用。

  She is a devout Catholic who never misses Mass, even when travelling.

  她是一位虔诚的天主教徒，即使旅行在外也从不缺席弥撒。

Both can mean deeply committed to a faith. Religious is a general, neutral word for having religious beliefs or practicing a faith; it does not always mean deep devotion. Devout is stronger, stressing sincere devotion, and often pairs with a religion, as in 'devout Catholic'.

这两个词都可表示“虔诚的、笃信宗教的”，但语气强弱不同：religious较为中性、常泛指信教之人，devout则语气更强，强调发自内心的虔诚与投入。此处不比较religious表示“与宗教有关的”这一义项（如religious building 宗教建筑）。