no fucking idea
National Fisheries Institute
National Forest Inventory
Near Field Imaging
no further information
Non-Food Item
Narrow Field Instrument
Narrowband Filter Imager
National Fatherhood Initiative
National Federation of Ironmongers
National Foreign Intelligence
National Forestry Institute
National Fraud Initiative
Nerve Fiber Indicator
nerve function impairment
Net Financial Income
Net Foreign Investment
Network Function Identification
Neurobehavioral Functioning Inventory
neurofibromatosis
Neurofibromatosis type I
Night Float Intern
No Friggin' Idea
No Fucking Interest
no further investigation
No Further Investment
Noninvasive Filler Identification
Normed Fit Index
Not For Inventory
Not Fucking Interested