What is the meaning of Naming_collision?

5-letter words containing

• 5-letter words containing y

• 5-letter words containing b

• 5-letter words containing u

• 5-letter words containing k

• 5-letter words containing n

5-letter words starting with

• 5-letter words starting with e

• 5-letter words starting with d

• 5-letter words starting with c

• 5-letter words starting with u

• 5-letter words starting with o

5-letter words in the middle

• 5-letter words in the middle l

• 5-letter words in the middle p

• 5-letter words in the middle n

• 5-letter words in the middle l

• 5-letter words in the middle i

5-letter words ending with

• 5-letter words ending with u

• 5-letter words ending with g

• 5-letter words ending with e

• 5-letter words ending with v

• 5-letter words ending with c

5-letter words excluding

• 5-letter words excluding e

• 5-letter words excluding e

• 5-letter words excluding r

• 5-letter words excluding q

• 5-letter words excluding u