What is the meaning of Demarcation_line?

5-letter words containing

• 5-letter words containing s

• 5-letter words containing p

• 5-letter words containing a

• 5-letter words containing r

• 5-letter words containing u

5-letter words starting with

• 5-letter words starting with n

• 5-letter words starting with u

• 5-letter words starting with p

• 5-letter words starting with e

• 5-letter words starting with s

5-letter words in the middle

• 5-letter words in the middle n

• 5-letter words in the middle i

• 5-letter words in the middle g

• 5-letter words in the middle o

• 5-letter words in the middle e

5-letter words ending with

• 5-letter words ending with n

• 5-letter words ending with o

• 5-letter words ending with g

• 5-letter words ending with t

• 5-letter words ending with i

5-letter words excluding

• 5-letter words excluding u

• 5-letter words excluding v

• 5-letter words excluding a

• 5-letter words excluding r

• 5-letter words excluding a