approximately
US /əˈprɑːk.sə.mət.li/
UK /əˈprɑːk.sə.mət.li/

1.
circa, approssimativamente
used to show that something is almost, but not completely, accurate or exact; roughly
:
•
The journey will take approximately three hours.
Il viaggio durerà circa tre ore.
•
There are approximately 20,000 people living in this town.
Ci sono circa 20.000 persone che vivono in questa città.