What is the meaning of Identity_function?

5-letter words containing

• 5-letter words containing e

• 5-letter words containing s

• 5-letter words containing e

• 5-letter words containing a

• 5-letter words containing t

5-letter words starting with

• 5-letter words starting with p

• 5-letter words starting with h

• 5-letter words starting with f

• 5-letter words starting with e

• 5-letter words starting with b

5-letter words in the middle

• 5-letter words in the middle a

• 5-letter words in the middle r

• 5-letter words in the middle a

• 5-letter words in the middle e

• 5-letter words in the middle g

5-letter words ending with

• 5-letter words ending with t

• 5-letter words ending with y

• 5-letter words ending with c

• 5-letter words ending with a

• 5-letter words ending with a

5-letter words excluding

• 5-letter words excluding f

• 5-letter words excluding r

• 5-letter words excluding s

• 5-letter words excluding w

• 5-letter words excluding o