0 the line of bones down the centre of the back that provides support for the body: --
1 the most important part of something, providing support for everything else: --
Farming is the backbone of the country's economy.
[ + to infinitive ] Will he have the backbone to tell them what he thinks?
3 the part of something that provides strength and support: --
Newcomers are now the backbone of this team.
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
We kunnen het stap voor stap voltooien, hoe lang de weg ook is en het kan niet worden voltooid, hoe kort de weg ook is, als je niet eens je voetafdruk markeert.