What is the meaning of ␀?

5-letter words containing

• 5-letter words containing a

• 5-letter words containing r

• 5-letter words containing r

• 5-letter words containing u

• 5-letter words containing o

5-letter words starting with

• 5-letter words starting with r

• 5-letter words starting with l

• 5-letter words starting with e

• 5-letter words starting with e

• 5-letter words starting with s

5-letter words in the middle

• 5-letter words in the middle e

• 5-letter words in the middle o

• 5-letter words in the middle s

• 5-letter words in the middle g

• 5-letter words in the middle l

5-letter words ending with

• 5-letter words ending with s

• 5-letter words ending with e

• 5-letter words ending with p

• 5-letter words ending with d

• 5-letter words ending with e

5-letter words excluding

• 5-letter words excluding p

• 5-letter words excluding a

• 5-letter words excluding r

• 5-letter words excluding d

• 5-letter words excluding i