faith是爱情词吗

不是。

faith

n.信任;相信;信心;宗教信仰;(某一)宗教

复数： faiths

例句：

Her friends kindness has restored her faith in human nature.

她朋友的善意使她恢复了对人性的信心。

People have lost faith in the British Parliament.

人们已经对英国议会失去了信任。

Her success had justified the faith her teachers had put in her.

她的成功证明了老师对她的信心是正确的。

He has blind faith in doctors' ability to find a cure.

他盲目相信医生有妙手回春的能力。