loyal in English:

Dogs are faithful.

Tom doesn't believe that Mary has been faithful to him.

The statue of Hachiko, the faithful dog, stands in front of Shibuya Station.

The slowest one to make a promise is the most faithful one in keeping it.

The faithful believe that this relic is imbued with healing properties.

The feelings of "love at first sight" and "faithful unto death" are unrealistic; this sort of unrealistic and illusory feeling is not what we need.

I like dogs better than cats, because the former are more faithful than the latter.

We consider now pairwise non-isomorphic factor modules of this faithful module.

Translation is like a woman. If it is beautiful, it is not faithful. If it is faithful, it is most certainly not beautiful.

Every child who learns, and every man who finds work, and every sick body that's made whole - like a candle added to an altar - brightens the hope of all the faithful.

the city has always been faithful to the Conservative party / her husband was faithful to her / the film was faithful to the book

In the distance I hear a muezzin calling the faithful to prayer.

She was faithful to the memory of her deceased husband and always kept a photograph of him beside her bed.

My grandma is very faithful. She goes to church every sunday.