What is the meaning of ②?

5-letter words containing

• 5-letter words containing v

• 5-letter words containing r

• 5-letter words containing n

• 5-letter words containing v

• 5-letter words containing c

5-letter words starting with

• 5-letter words starting with c

• 5-letter words starting with b

• 5-letter words starting with z

• 5-letter words starting with l

• 5-letter words starting with r

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 e

• 5-letter words in the middle r

• 5-letter words in the middle k

5-letter words ending with

• 5-letter words ending with a

• 5-letter words ending with i

• 5-letter words ending with u

• 5-letter words ending with c

• 5-letter words ending with e

5-letter words excluding

• 5-letter words excluding i

• 5-letter words excluding g

• 5-letter words excluding a

• 5-letter words excluding c

• 5-letter words excluding s