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|Look up -nir or nir in Wiktionary, the free dictionary.|
NIR or Nir may refer to:
- Near-infrared, a region of the infrared spectrum of light
- Northern Ireland Railways
- National Identity Register, a former UK database
- National Internet registry, which coordinates IP address and other resource allocation
- Rate of natural increase, a demographic metric of population increase
- Nir, Iran (disambiguation)
|This disambiguation page lists articles associated with the title NIR.
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