"mesa" in the noun sense
1. mesa, table
flat tableland with steep edges
"the tribe was relatively safe on the mesa but they had to descend into the valley for water"
a city in Arizona just to the east of Phoenix originally a suburb of Phoenix
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License