gender - n. the state of being male or female

challenge - n. a difficult task or problem : something that is hard to do

page - n. one side of a sheet of paper especially in a book, magazine, etc.

illusion - n. an incorrect idea : an idea that is based on something that is not true

crack - v. to find an answer or solution to (something)

regress - v. to return to an earlier and usually worse or less developed condition or state

trend - n. a general direction of change : a way of behaving, proceeding, etc., that is developing and becoming more common

authoritarian - adj. expecting or requiring people to obey rules or laws : not allowing personal freedom