Build on and Elaborate on

Build on verb - Be based on; of theories and claims, for example.

Elaborate on and build on are semantically related. In some cases you can use "Elaborate on" instead a verb "Build on".

Elaborate on verb - To add to the interest of by including made-up details.

Build on and elaborate on are semantically related. Sometimes you can use "Build on" instead a verb "Elaborate on".