numerator, number, negative
Neighborly and nondiscriminatory are good words. They begin with the letter n.
multiplacation mental math
Jizz
juxtaposition
decrease
Complimentary words that begin with N:NobleNiceNiftyNecessaryNeatNeighborly
nicenewnaturalnoblenotable
Kilometre , kilogram
3 letter words begin with n:nabnagnapnetnewnilnipnitnixnobnodnornotnownubnunnut
Kilogram and Kilometer are math words. They begin with the letter k.
Rain and rein are four letter words that begin with r and end with n. Additional words include roan and ruin.
Zero, Zenith, zillion (informal).