What is the meaning of Unix?

5-letter words containing

• 5-letter words containing e

• 5-letter words containing s

• 5-letter words containing n

• 5-letter words containing r

• 5-letter words containing k

5-letter words starting with

• 5-letter words starting with e

• 5-letter words starting with c

• 5-letter words starting with a

• 5-letter words starting with n

• 5-letter words starting with i

5-letter words in the middle

• 5-letter words in the middle i

• 5-letter words in the middle r

• 5-letter words in the middle r

• 5-letter words in the middle a

• 5-letter words in the middle v

5-letter words ending with

• 5-letter words ending with e

• 5-letter words ending with r

• 5-letter words ending with i

• 5-letter words ending with u

• 5-letter words ending with a

5-letter words excluding

• 5-letter words excluding z

• 5-letter words excluding l

• 5-letter words excluding v

• 5-letter words excluding i

• 5-letter words excluding r