aproximadamente

aproximadamente ah-prohx-ee-mah-dah-mehn'-teh (adverb)
approximately, about
1. A la fiesta van a venir aproximadamente 50 personas.

Approximately 50 people are coming to the party.

2. El vuelo de Nueva York a Santiago de Chile es aproximadamente de 10 horas.

The flight between New York and Santiago, Chile, is approximately 10 hours long.