On the contrary, to make progress we should give up on making precise definitions of non-technical terms such as 'body' and 'intelligence'. They are folk notions that don't have relevant precise definitions talking about them in an engineering context is distracting.
You don't need a definition of 'beauty' to paint. You don't need a definition of 'justice' to practice law. You don't need a definition of 'intelligence' to build clever robots.