Binding energy and Free energy

Binding energy noun - The energy required to separate particles from a molecule or atom or nucleus; equals the mass defect.

Free energy and binding energy are semantically related. In some cases you can use "Free energy" instead a noun phrase "Binding energy".

Free energy noun - (physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs.

Binding energy and free energy are semantically related. Sometimes you can replace phrase "Binding energy" with "Free energy", this phrases are similar.