What is the meaning of „_”?

5-letter words containing

• 5-letter words containing e

• 5-letter words containing a

• 5-letter words containing o

• 5-letter words containing o

• 5-letter words containing g

5-letter words starting with

• 5-letter words starting with n

• 5-letter words starting with m

• 5-letter words starting with e

• 5-letter words starting with u

• 5-letter words starting with k

5-letter words in the middle

• 5-letter words in the middle e

• 5-letter words in the middle s

• 5-letter words in the middle f

• 5-letter words in the middle k

• 5-letter words in the middle l

5-letter words ending with

• 5-letter words ending with i

• 5-letter words ending with r

• 5-letter words ending with n

• 5-letter words ending with i

• 5-letter words ending with r

5-letter words excluding

• 5-letter words excluding v

• 5-letter words excluding e

• 5-letter words excluding k

• 5-letter words excluding i

• 5-letter words excluding r