How to name a related list Parent-Child relationship.

Not sure how exactly to ask this question, but I created a parent-child relationship via a lookup field between two modules.

When I view the Child records from the parent record, I would like to "Rename" the module or relationship so it's obvious to the user. It looks like Zoho uses a default name "{0}NAME" for the related list.

Does anyone know how to do this, i.e. rename the default name.

Thanks - p