English Vocabulary tips & definition with Gymglish.
Improve your English and try our online English lessons for free.


The Pentagon (building housing US Department of defense): The government building with five sides that serves as the headquarters of the United States Department of Defense
a pentagon a five-sided polygon

Going further...

Still having difficulties with 'Pentagon' Test our online English lessons and receive a free level assessment!

Do you have smart way of remembering this rule? A tip to avoid making a mistake on 'Pentagon'?
Share it with us!