NIOBRARA RIVERNiobrara River · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:NIOBRARA RIVERTier 1Ordinal150Pythagorean78Classical142Reverse201Reverse Reduction93Standard884Final Large884Ordinal128Reduced29Atbash561Isopsephy551Ordinal137Abjad961