What is the meaning of Visitor_pattern?

5-letter words containing

• 5-letter words containing d

• 5-letter words containing u

• 5-letter words containing t

• 5-letter words containing i

• 5-letter words containing k

5-letter words starting with

• 5-letter words starting with v

• 5-letter words starting with v

• 5-letter words starting with t

• 5-letter words starting with a

• 5-letter words starting with l

5-letter words in the middle

• 5-letter words in the middle e

• 5-letter words in the middle r

• 5-letter words in the middle r

• 5-letter words in the middle m

• 5-letter words in the middle a

5-letter words ending with

• 5-letter words ending with r

• 5-letter words ending with u

• 5-letter words ending with o

• 5-letter words ending with e

• 5-letter words ending with e

5-letter words excluding

• 5-letter words excluding l

• 5-letter words excluding n

• 5-letter words excluding t

• 5-letter words excluding e

• 5-letter words excluding e