Another definition that I found at The Sphere Project website which I quite liked was:
"The Humanitarian Imperative: that action should be taken to prevent or alleviate human suffering arising out of disaster or conflict, and that nothing should override this principle (The Sphere Project, n.d.)."
Found at: http://www.spherehandbook.org/en/the-humanitarian-charter/
The study guide also touched on the fact that humanitarianism is about the moral imperative to not only save lives, alleviate suffering and maintain people's dignity, but also to bear witness to people's lives and stories and advocate for their rights, all of which I found poignant.
Another important definition that was mentioned but not included in the activity list was:
Asylum Seeker: a person who has fled their country and who has applied to a government for refugee status but has not yet been granted or denied that status.
The Sphere Project, n.d., The Humanitarian Charter and Minimum Standards in Humanitarian Response, viewed 17 December 2014, <http://www.spherehandbook.org/en/the-humanitarian-charter/>.