The alcohol where -OH group is attached to the saturated C beside $\mathrm{C}=\mathrm{C}$ group, is an allylic alcohol.
$\begin{gathered}\mathrm{HO}-\stackrel{1}{\mathrm{C}} \mathrm{H}_2-\stackrel{2}{\mathrm{C}} \mathrm{H}=\stackrel{3}{\mathrm{C}} \mathrm{H}-\stackrel{4}{\mathrm{C}} \mathrm{H}_3 \\ \text { But-2-en-l-ol }\end{gathered}$