Noun
back bone (plural back bones)
Alternative form of backbone
back-bone (countable and uncountable, plural back-bones)
Alternative spelling of backbone
back-bone
Entrepreneurship is the very back bone of our country and what makes us great - we are a nation of founders. Nancy Lublin
if you don't try at anything, you can't fail... it takes back bone to lead the life you want. Richard Yates
A Man like him (Tan Zuoren) is the back bone of our nation, is our nation's salt and calcium, is the foundation stone of the rebuilding of nation's morals; the beginning of the rebuilding of the society. To jail such a person, is to jail the nation's conscience. Cui Weiping