What is the meaning of Binary_operator?

5-letter words containing

• 5-letter words containing p

• 5-letter words containing n

• 5-letter words containing f

• 5-letter words containing i

• 5-letter words containing i

5-letter words starting with

• 5-letter words starting with m

• 5-letter words starting with l

• 5-letter words starting with u

• 5-letter words starting with l

• 5-letter words starting with r

5-letter words in the middle

• 5-letter words in the middle e

• 5-letter words in the middle e

• 5-letter words in the middle e

• 5-letter words in the middle t

• 5-letter words in the middle z

5-letter words ending with

• 5-letter words ending with m

• 5-letter words ending with d

• 5-letter words ending with t

• 5-letter words ending with d

• 5-letter words ending with i

5-letter words excluding

• 5-letter words excluding i

• 5-letter words excluding c

• 5-letter words excluding a

• 5-letter words excluding i

• 5-letter words excluding o