A beauty pageant is a competition that takes place in front of judges who score a persons beauty 
Who competes in beauty pageants?
Beauty pageants are generally multi-tiered. Almost like a bracket and mostly beautiful ladies.
Oh I see. What happens exactly at a beauty pageant?
Judges rank the physical and other attributes of women.
What are the main beauty pageants?
The international pageants are the main ones. They have hundreds of thousands of competitors.