• espo,
• wspoo,
• sspoo,
• dspoo,
• rspoo,
• 4spoo,
• 3spoo,
• eapoo,
• ezpoo,
• expoo,
• edpoo,
• eepoo,
• ewpoo,
• esooo,
• esspoo,
• espu,
• Espeo,
• espoe,
• espou,
• Espoose

• ESP,
• esop.

The plural form of the word "Espoo" is still "Espoo" as it does not change when referring to multiple instances of the city.

The singular form of the word "Espoo" is still "Espoo". It is the name of a city in Finland and does not change in singular or plural usage.