How do you get on the net?

A triple net lease (Net-Net-Net or NNN) is a lease agreement on a property where the tenant or lessee agrees to pay all real estate taxes, building insurance, and maintenance (the three 'Nets') on...

net is Network Enable Technology

it is the net you use to catch the fish in

Unit net weight Weight (mass) of goods including any packing normally going with them to a buyer in a retail sale. Net net weight Weight (mass) of the goods themselves without any packing.

"Net Net" is a business term for the absolute, final, "bottom line" cost of an item, after all discounts, fees, charges, etc. have been calculated.