pentágono
/penˈtaɡono/masculine
The English phrase "pentagon" is pentágono in Spanish.
The word pentágono refers to a polygon with five sides and five angles. When referring specifically to the headquarters of the United States Department of Defense, the word is often capitalized as the proper noun Pentágono.
Meaning: a polygon with five sides and five angles (noun)
Which one should you use?
The capitalized Pentágono is used when you are referring specifically to the Pentagon building or institution.
Is it said differently in some regions?
Pentágono is the standard term in most Spanish-speaking regions, including Spain, Mexico, Argentina, Colombia and Peru.
Related words
How does it change in a sentence?
As a masculine noun, pentágono uses the masculine indefinite article un (un pentágono). The plural form of pentágono is pentágonos (los pentágonos).
How do you pronounce it?
/penˈtaɡono/
Did you know?
- While 'pentagon' in English can refer to a complex bureaucracy, calling a person or system a pentágono in Spanish is much less common and would sound highly technical or unnatural.
- The stress in pentágono falls on the first 'a', which is why it requires a written accent mark to maintain its pronunciation.
- In Spanish, el Pentágono is often used as a metonym to refer to the US military leadership or the Department of Defense rather than just the building.
Examples in context
- El presidente visitó el Pentágono.The president visited the Pentagon.
- ¿Sabías que el edificio del Pentágono tiene cinco lados?Did you know that the Pentagon building has five sides?
- El pentágono tiene cinco lados.The pentagon has five sides.
- Dibujé un pentágono en mi cuaderno.I drew a pentagon in my notebook.
- La forma es un pentágono regular.The shape is a regular pentagon.
Example conversation
Sofía and Daniel are discussing a geometry project at school.
- Sofía¿Qué figura geométrica es esta?What geometric figure is this?
- DanielEs un pentágono.It is a pentagon.
- SofíaTienes razón, tiene cinco ángulos.You are right, it has five angles.
- DanielExacto, lo dibujé muy bien.Exactly, I drew it very well.
Sources
- Wiktionary, “pentagon” translations and entries pentágono, CC BY-SA 4.0, dump of 2026-09-26.
