\documentclass{article}
\usepackage{ulem}
\begin{document}
\begin{tabular}{ll}
uline  & underlined text like \uline{important}. \\
uuline & double-underlined text like \uuline{urgent}.\\
uwave  & wavy underline like \uwave{boat}.\\
sout   & line struck through word like \sout{wrong}.\\
xout   & marked over like \xout{removed}.\\
dashuline & dashed underline like \dashuline{dashing}.\\
dotuline  & dotted underline like \dotuline{dotty}.\\
\end{tabular}
\end{document}