Splitting Words into space separated characters

I have a table with one word in each row. I want to split the word into space separated c h a r a c t e r s. Is there a way to do that via bash command?

If yes, I also have a table with multiple words in each row.

Input:

blind
witt
nakamen
goot 

Output:

b l i n d
w i t t
n a k a m e n
g o o t

Multiword:

Input:

wat Blinns
allens witter
kemen na
se is goot

Output:

w a t B l i n n s
a l l e n s w i t t e r
k e m e n n a
s e i s g o o t