Bound up and Hard core

Bound up adjective - Closely or inseparably connected or associated with.

Hard core and bound up are semantically related. In some cases you can use "Hard core" instead an adjective phrase "Bound up".

Hard core noun - The most dedicated and intensely loyal nucleus of a group or movement.

Bound up and hard core are semantically related. Sometimes you can use "Bound up" instead an adjective phrase "Hard core".