Backbone and Balls

Backbone noun - A column of bones supporting the trunk of a vertebrate animal.

Balls and backbone are semantically related in strength of character topic. In some cases you can use "Balls" instead a noun "Backbone", when it comes to topics like vulgar slang.

Nearby Word: backboned

Backbone and balls are semantically related in bravery topic. You can use "Backbone" instead a noun "Balls".