What is the meaning of Non-functional?

5-letter words containing

• 5-letter words containing i

• 5-letter words containing o

• 5-letter words containing z

• 5-letter words containing l

• 5-letter words containing u

5-letter words starting with

• 5-letter words starting with t

• 5-letter words starting with n

• 5-letter words starting with k

• 5-letter words starting with e

• 5-letter words starting with d

5-letter words in the middle

• 5-letter words in the middle l

• 5-letter words in the middle r

• 5-letter words in the middle e

• 5-letter words in the middle u

• 5-letter words in the middle n

5-letter words ending with

• 5-letter words ending with s

• 5-letter words ending with a

• 5-letter words ending with a

• 5-letter words ending with d

• 5-letter words ending with l

5-letter words excluding

• 5-letter words excluding u

• 5-letter words excluding u

• 5-letter words excluding k

• 5-letter words excluding a

• 5-letter words excluding c