- Ⅰ.N  (also n) ► NOUN (pl. Ns or N's) ▪ the fourteenth letter of the alphabet.Ⅱ.N  ► ABBREVIATION 1) (used in recording moves in chess) knight. [ORIGIN: representing the pronunciation of kn-.] 2) (chiefly in place names) New. 3) Physics newton(s). 4) North or Northern.► SYMBOL ▪ the chemical element nitrogen.
English terms dictionary. 2015.