pentagon

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pentagon /ˈpɛntəˌgɑːn/ noun
plural pentagons
pentagon
/ˈpɛntəˌgɑːn/
noun
plural pentagons
Learner's definition of PENTAGON
[count] mathematics : a flat shape that has five sides and five corners see picture at geometry
the Pentagon
: the building in Washington, D.C., that is the headquarters of the U.S. Department of Defense
: the leaders of the U.S. military

— pentagonal

/pɛnˈtægənl̟/ adjective, mathematics
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