What is the meaning of Binary_operation?

5-letter words containing

• 5-letter words containing r

• 5-letter words containing g

• 5-letter words containing e

• 5-letter words containing a

• 5-letter words containing m

5-letter words starting with

• 5-letter words starting with m

• 5-letter words starting with u

• 5-letter words starting with e

• 5-letter words starting with u

• 5-letter words starting with a

5-letter words in the middle

• 5-letter words in the middle e

• 5-letter words in the middle s

• 5-letter words in the middle d

• 5-letter words in the middle u

• 5-letter words in the middle e

5-letter words ending with

• 5-letter words ending with a

• 5-letter words ending with g

• 5-letter words ending with g

• 5-letter words ending with i

• 5-letter words ending with e

5-letter words excluding

• 5-letter words excluding s

• 5-letter words excluding c

• 5-letter words excluding t

• 5-letter words excluding l

• 5-letter words excluding s