hola, como se dice en espanol, older sister, younger sister? hermana menor o hermana mas nueva? gracias

Question

Answer

younger sister could be translated as "hermana pequeña" too

Answer

- older sister = hermana mayor
- younger sister = hermana menor 
- little sister = hermanita o hermana más pequeña
- newborn sister = hermanita recien nacida, es decir mi hermanita baby

Answer

You say : 
hermana mayor (older sister) 
hermana menor (younger sister) 

You use the same for younger and older brother (menor /mayor )