This is the 3852nd most frequent Catalan word.
be
"Lamb."
In this sentence, 'be' refers to a young sheep, and it's used as a noun.
El xai és un be jove que encara viu amb la seva mare.
The lamb is a young ewe that still lives with its mother.
Here, 'be' is used metaphorically to describe someone as meek or docile, akin to the qualities of a lamb.
Es va comportar com un be mans en presència del seu avi.
He behaved like a meek lamb in the presence of his grandfather.
In this instance, 'be' is once again used as a noun to talk about a lamb in a farming or pastoral context.