English dictionary

Pentagon

/'p/E/nt/@/,g/A/n/

Definitions, examples, synonyms and antonyms from WordNet 3.0.

noun

a government building with five sides that serves as the headquarters of the United States Department of Defense

noun.artifact

Source: WordNet 3.0
the United States military establishment

noun.group

Source: WordNet 3.0
a five-sided polygon

noun.shape

Source: WordNet 3.0
A plane figure having five angles, and, consequently, five sides; any figure having five angles.

noun

Source: webster1913