pentagon Synonyms

5-gon rhombus rhomb quintuple quintette quinquennium quinquennial quincunx quadrilateral tetrahedron trapezoid trigon five-sided polygon Defense Department quinquangle bureaucratism limerick quintuplet quadrature quadrangle polygon heptagon five dodecahedron dodecagon dod diamond decagonal decagon cinquefoil hexagon lustrum pentangle pentahedron pentagram pentagonal pentad pentacle parallelogram oxygon octagon cinque