a city in Arizona just to the east of Phoenix; originally a suburb of Phoenix
"The Mesa sunsets are famous, making it a popular spot for residents living just east of Phoenix."
Flat area of land or plateau higher than other land, with one or more clifflike edges.
"The hikers climbed up the steep cliffs to reach the wide mesa overlooking the valley below."
In plain English: A mesa is a flat-topped hill with steep sides that rises above the surrounding land.
"The family had dinner on the wooden mesa in their backyard garden."
Usage: Use the singular form mesa when referring to an individual flat-topped hill and pluralize it as mesas only if you are talking about multiple such formations; avoid using mesoas in everyday speech since this term is specific to geography rather than general landscape descriptions like plateau or tableland.
A city in Maricopa County, Arizona.
"Mesa is a vibrant city located in Maricopa County, Arizona."
The word mesa entered English around 1759 as a loanword from the Spanish term for "table." It ultimately traces its roots back to the ancient Latin word mēnsa, which also meant table.