
\documentclass{article}
\usepackage[french]{babel}
\usepackage[body={8cm,8cm}]{geometry}
\usepackage{glossaries}
\newglossaryentry{ex}{name={exemple},description={illustration d'un concept}}
\pagestyle{empty}
\begin{document}
Voici un bel \gls{ex}.
\section*{Glossaire}
\textbf{exemple} illustration d'un concept. 1
\end{document}
