| English | Sinhala |
| primary calendar | මූලික දිනදසුන (The calendar selected in the regional settings in Windows Control Panel, or the system calendar) |
| primary key | ප්රාථමික මූලය (One or more fields that uniquely identify each record in a table. In the same way that a license plate number identifies a car, the primary key uniquely identifies a record) |
| primary mouse button | මූලික මූසික බොත්තම (The button on your pointing device that you use most often for clicking and double-clicking) |
| primary table | මූලික වගුව (" The "one" side of two related tables in a one-to-many relationship. A primary table should have a primary key and each record should be unique.") |
| primary window | මූලික කවුළුව (The window in which the main interaction with an object takes place) |
