n-bomb noun (US sl)

A use of the word 'nigger', considered offensive

the N-word noun (euphemistic)

Nigger

N or n /en/

1. The fourteenth letter in the modern English alphabet, thirteenth in the Roman, its sound an alveolar nasal, or before g or k a velar nasal (as in sing, sink)
2. An indefinite number, esp in a series (mathematics), often (informal) implicitly a large number
3. A unit of measurement (en) = half an em (printing)
4. Anything shaped like the letter N

n^thor nth adjective

nˈ-type adjective

(ie ‘negative-type’) of a semiconductor, having an excess of conduction electrons over mobile holes (see hole¹)

to the n^th(or nth)

1. To any power
2. Hence (informal) to an unlimited degree

N̄

(medieval Roman numeral) 90000