Question: What are these green words that appear throughout the forms?

Answer: The green words you see throughout the TAX$IMPLE forms are notifying  you that the field they mark are able to call the form listed in green.   The closest field to the green words will allow the form to be called by selecting this field with a double click, or a single click on the CF button next to the field.  This is the way you will navigate to all the forms needed to complete your tax return.