Is NaOH a proton acceptor?

Solution:
NaOH is an Arrhenius base.
This means it donates OH^- in an aqueous solution.
$NaO{H}_{\left(aq\right)} \stackrel{}{\to }N{a}_{\left(aq\right)}^{+}+O{H}_{\left(aq\right)}^{-}$
Whereas bases like NH₃ accept H⁺ acting as Lewis Acid.