Find 15 school words.

k g c h o p l p z n
s x a s u b j e c t
e m l s n c g n o s
d i c t i o n a r y
i s u u f m a p p l
a t l d o p t r e e
r a a e r u u u n s
y k t n m t r l c s
w e o t g e e e i o
v a r w o r k r l n