Bella (and bellas) and bellos (and bello) mean beautiful. They are different because in Spanish adjectives must agree in gender and number with the noun they are modifying.
For example, to say "beautiful mountain," which is a (singular) feminine noun in Spanish, you would say "montaña bella," but to say "beautiful eyes," which is a (plural) masculine noun in Spanish, you would say "ojos bellos."
I'm not sure what your asking but if you want to know how to say it in Spanish this is how: Bella y Edward o Bella y Jacob. Not much difference.
hermosa or Bella
la bella novia
Bello / Bella hermoso/hermosa
La vida es Bella
Rosa hermosa or Rosa Bella
La Bella Durmiente
O Venezuela la bella!
She says morte. Bella knows a bit of Spanish, so she knows it means death.
Trata usted/tratas de decir 'reina bella' (formal/informal) TRAHtah ooSTAY/TRAHtass they theyTHEER 'reina bella' ''they' as English 'they'; 'THEER' as in 'thin'
the same beautiful = lo mismo bello/bella
eres bienvenido a mi sobrina bella