What is the meaning of Valid_name?

5-letter words containing

• 5-letter words containing s

• 5-letter words containing e

• 5-letter words containing m

• 5-letter words containing i

• 5-letter words containing e

5-letter words starting with

• 5-letter words starting with i

• 5-letter words starting with k

• 5-letter words starting with e

• 5-letter words starting with j

• 5-letter words starting with e

5-letter words in the middle

• 5-letter words in the middle u

• 5-letter words in the middle r

• 5-letter words in the middle r

• 5-letter words in the middle i

• 5-letter words in the middle e

5-letter words ending with

• 5-letter words ending with l

• 5-letter words ending with a

• 5-letter words ending with m

• 5-letter words ending with d

• 5-letter words ending with l

5-letter words excluding

• 5-letter words excluding o

• 5-letter words excluding i

• 5-letter words excluding c

• 5-letter words excluding p

• 5-letter words excluding a