A bit. Bite-size piece. A morsel. A mouthful.

Betel nuts. They have come to be known as betel nuts, rather than areca nuts, because these red seeds are part of the betel chew.

Beaver

To treat. To wine and dine.

Bee-keeping

A stew of reindeer meat, onions, potatoes and cloves, bay leaves and a little vinegar.

Beef steak. On the whole "beefsteak" indicates that it is likely to be an inferior cut or it would be specifically named.