Agentive nouns typically denote doers or performers of actions. The
convention is to make agentive noun assertions on the constant whose
name represents the action. For example, for the agentive noun
"worker" will have assertions on the constant "Work-TheWord" in
which "work" is the "root form". Thus, on the "Add to Lexicon"
page, you will enter the closest "root form". Depending on whether
the plural form of the agentive noun is formed regularly or irregularly,
you will click on the appropriate button and then follow the procedure
given for adding simple nons - with the exception that you will be
filling the "Agentive Noun" boxes, rather than the "Noun" ones.