What is the meaning of Arithmetic_operator?

5-letter words containing

• 5-letter words containing n

• 5-letter words containing r

• 5-letter words containing k

• 5-letter words containing h

• 5-letter words containing d

5-letter words starting with

• 5-letter words starting with m

• 5-letter words starting with a

• 5-letter words starting with a

• 5-letter words starting with t

• 5-letter words starting with n

5-letter words in the middle

• 5-letter words in the middle l

• 5-letter words in the middle i

• 5-letter words in the middle d

• 5-letter words in the middle g

• 5-letter words in the middle s

5-letter words ending with

• 5-letter words ending with r

• 5-letter words ending with m

• 5-letter words ending with e

• 5-letter words ending with a

• 5-letter words ending with t

5-letter words excluding

• 5-letter words excluding v

• 5-letter words excluding i

• 5-letter words excluding s

• 5-letter words excluding w

• 5-letter words excluding r