\nomenclatureentry{a\bf Real Number@[{\bf Real Number}]\begingroup include both rational numbers, such as $42$ and                $\frac{-23}{129}$, and irrational numbers,                such as $\pi$ and the square root of two; or,                a real number can be given by an infinite decimal                representation, such as $2.4871773339\ldots$ where                the digits continue in some way; or, the real                numbers may be thought of as points on an infinitely                long number line\nomeqref {0}|nompageref}{1}
\nomenclatureentry{a\bf Linux@[{\bf Linux}]\begingroup is a generic term referring to the family of Unix-like                computer operating systems that use the Linux kernel\nomeqref {0}|nompageref}{1}
\nomenclatureentry{a\bf naive@[{\bf naive}]\begingroup is a French loanword (adjective, form of na\"{\i}f)                indicating having or showing a lack of experience,                understanding or sophistication\nomeqref {0}|nompageref}{1}