Here is the code in Preamble and I entered for List of Abbreviations:
\documentclass[11pt, a4paper, oneside]{thesis} \usepackage[body={7.0in, 9.5in},top=1.2in, left=1.69in, right=1.0in, includefoot]{geometry} \bibliographystyle{IEEEtran} \hyphenation{op-tical net-works semi-conduc-tor} \usepackage{wrapfig} \usepackage[utf8]{inputenc} \usepackage[english]{babel} \usepackage{graphicx} \usepackage{amsmath} \usepackage{multirow} \setcounter{secnumdepth}{3} \usepackage{pdfpages} \usepackage[nottoc,notlof,notlot]{tocbibind} %\renewcommand\bibname{References} \usepackage{cite} %\usepackage{natbib} \usepackage{float} \usepackage{color} \usepackage{algorithm,algpseudocode} \renewcommand{\baselinestretch}{1.3} \usepackage{titlesec} % Modifica títulos \titleformat{\chapter}[hang] {\LARGE\normalfont\bfseries} {\thechapter}{1em}{} \titleformat{name=\chapter,numberless}[hang] {\normalfont\LARGE\bfseries\filcenter}{}{1ex}{}{} \titleformat{\section}[hang]{\normalfont\bfseries}{\thesection}{0.5em}{} \titleformat{\subsection}[hang]{\normalfont\bfseries}{\thesubsection}{0.5em}{} \titleformat{\subsubsection}[hang]{\normalfont\bfseries}{\thesubsubsection}{0.5em}{} \titlespacing{\chapter}{0pt}{0pt}{40pt} \titlespacing{\section}{0pt}{\baselineskip}{0.625\baselineskip} \titlespacing{\subsection}{0pt}{\baselineskip}{0.6\baselineskip} \titlespacing{\subsubsection}{0pt}{\baselineskip}{\baselineskip} \usepackage{tikz} \usetikzlibrary{shapes,arrows} \newcommand*\circled[1]{\tikz[baseline=(char.base)]{ \node[shape=circle,draw,inner sep=0.5pt] (char) {#1};}} \usetikzlibrary{calc} \usetikzlibrary{calc,matrix} \usepackage[skip=2pt,font=scriptsize]{caption} \usepackage{subcaption} \usepackage{array} \usepackage{mdwmath} \usepackage{mdwtab} \usepackage{multirow} \usepackage{siunitx} \usepackage{soul} \usepackage{cancel} \usepackage{amssymb}% <!-- m --><a class="postlink" href="http://ctan.org/pkg/amssymb">http://ctan.org/pkg/amssymb</a><!-- m --> \usepackage{pifont}% <!-- m --><a class="postlink" href="http://ctan.org/pkg/pifont">http://ctan.org/pkg/pifont</a><!-- m --> \newcommand{\cmark}{\ding{41}}% \newcommand{\xmark}{\ding{55}} %\usetikzlibrary{calc,matrix} \usepackage{color,soul} \usepackage{enumerate} \usepackage{IEEEtrantools} \usepackage{bbding} %\bibliographystyle{ieeebib} \usepackage{rotating} \usepackage{listings} \usepackage{lineno} \usepackage{lscape} \usepackage{adjustbox} %\modulolinenumbers[1] \lstdefinestyle{mystyle}{ breakatwhitespace=false, breaklines=true, captionpos=b, keepspaces=true, numbers=left, numbersep=20pt, showspaces=false, showstringspaces=false, showtabs=false, tabsize=2 } \lstset{style=mystyle} % % Nomenclature commands \usepackage[intoc]{nomencl} \makenomenclature \usepackage[toc,nopostdot,nonumberlist,acronym,section]{glossaries} \newrobustcmd{\bffirst}[1]{{\let\mfirstucMakeUppercase\textbf\capitalisewords{#1}}} \newacronymstyle{bf-long-short}{\GlsUseAcrEntryDispStyle{long-short}}{\GlsUseAcrStyleDefs{long-short}\renewcommand*{\GenericAcronymFields}{description={\bffirst{\the\glslongtok}}}} \setacronymstyle{bf-long-short} \newglossary[ch1]{chstyle}{ch2}{ch3}{List of Greek Symbols} \makeglossaries \glsdisablehyper \newglossarystyle{csyle}{% \glossarystyle{list}% \renewcommand*{\glossaryentryfield}[5]{% \item[\glsentryitem{##1}\glstarget{##1}{##2}]% \hspace{2.5cm}##3\glspostdescription\dotfill ##5}% } %\renewcommand{\chaptername}[2]{\chaptername{#1} \thechapter{#2}} % % \include{glossary-nomen-entries} \begin{document} . . \tableofcontents \cleardoublepage %List of figures \addcontentsline{toc}{chapter}{\listfigurename} \listoffigures \cleardoublepage %List of tables \addcontentsline{toc}{chapter}{\listtablename} \listoftables % Print Nomenclature \printnomenclature % List of Abbreviations \printglossary[title=List of Abbreviations,type=\acronymtype] \renewcommand{\glsnamefont}[1]{\makefirstuc{#1}}