^(w{10})$

^w{0,10}$ # allows words of up to 10 characters.
^w{5,}$   # allows words of more than 4 characters.
^w{5,10}$ # allows words of between 5 and 10 characters.

{n,m}  n <= length <= m
{n}    length == n
{n,}   length >= n

^[A-Za-z0-9s$&+,:;=?@#|'<>.^*()%!-]{0,10}$