Is āegenkon officially also the noun "iron", and not only the adjective? This course seems to be using that word exclusively. Previously āegion has been given as the noun form. Which is correct?
The last one "äegion" was correct
How is this different from "We are not eating the iron."? Which is what I put in and it counted as incorrect.
Report it, your answer I think is also correct. If so they'll review and add it.