What is the meaning of X'?

5-letter words containing

• 5-letter words containing a

• 5-letter words containing i

• 5-letter words containing o

• 5-letter words containing s

• 5-letter words containing r

5-letter words starting with

• 5-letter words starting with c

• 5-letter words starting with e

• 5-letter words starting with s

• 5-letter words starting with f

• 5-letter words starting with c

5-letter words in the middle

• 5-letter words in the middle o

• 5-letter words in the middle r

• 5-letter words in the middle t

• 5-letter words in the middle e

• 5-letter words in the middle e

5-letter words ending with

• 5-letter words ending with e

• 5-letter words ending with y

• 5-letter words ending with o

• 5-letter words ending with o

• 5-letter words ending with n

5-letter words excluding

• 5-letter words excluding m

• 5-letter words excluding a

• 5-letter words excluding v

• 5-letter words excluding o

• 5-letter words excluding e