noun
Usage: usually capitalized N
Etymology: nihilist (I) ; from its use by the Russian nihilists
: a substitution method replacing each letter by its row and column numbers in an alphabet square
noun
Usage: usually capitalized N
Etymology: nihilist (I) ; from its use by the Russian nihilists
: a substitution method replacing each letter by its row and column numbers in an alphabet square
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012