Question

In your own words, please explain what nationalism means to you.

In your own words, please explain what patriotism means to you

Answer 1

Hmm this would probably be better suited for the writing section. Though "meaning to you" generally means what you think, so it would be good to mention your current ideas and maybe gain help on how you could expand them.

Answer 2

patriotism: the act of doing your duty for Queen and Country (or whatever place you are in), whether that be for family, a spouse, or self-preservation.
nationalism: the aggressive desire to have your country succeed, whatever the cost; also know as chauvinism.