What is the meaning of „_”?

5-letter words containing

• 5-letter words containing i

• 5-letter words containing o

• 5-letter words containing d

• 5-letter words containing d

• 5-letter words containing s

5-letter words starting with

• 5-letter words starting with a

• 5-letter words starting with b

• 5-letter words starting with t

• 5-letter words starting with h

• 5-letter words starting with u

5-letter words in the middle

• 5-letter words in the middle a

• 5-letter words in the middle a

• 5-letter words in the middle o

• 5-letter words in the middle l

• 5-letter words in the middle b

5-letter words ending with

• 5-letter words ending with r

• 5-letter words ending with h

• 5-letter words ending with e

• 5-letter words ending with n

• 5-letter words ending with l

5-letter words excluding

• 5-letter words excluding c

• 5-letter words excluding y

• 5-letter words excluding u

• 5-letter words excluding g

• 5-letter words excluding a