The feminine for manager is manageress.
Father ka faminine gender kya hoga
goose
Seamstress.
goose
Niece
It is a goddess.
Governess
The thing doing the erasing (ie eraser) is feminine (la gomme). The thing which was erased (ie erasure) has two forms--one masculine and one feminine.
Feminine for cockerel is hen.
faminine
Empress is already the feminine form of emperor.
a widower is translated 'un veuf' in French. This is a masculine noun.