What is the meaning of Mapping_reduction?

5-letter words containing

• 5-letter words containing i

• 5-letter words containing a

• 5-letter words containing v

• 5-letter words containing s

• 5-letter words containing j

5-letter words starting with

• 5-letter words starting with a

• 5-letter words starting with i

• 5-letter words starting with a

• 5-letter words starting with s

• 5-letter words starting with p

5-letter words in the middle

• 5-letter words in the middle i

• 5-letter words in the middle m

• 5-letter words in the middle f

• 5-letter words in the middle y

• 5-letter words in the middle t

5-letter words ending with

• 5-letter words ending with l

• 5-letter words ending with e

• 5-letter words ending with L

• 5-letter words ending with e

• 5-letter words ending with l

5-letter words excluding

• 5-letter words excluding o

• 5-letter words excluding t

• 5-letter words excluding t

• 5-letter words excluding i

• 5-letter words excluding e