What is the meaning of Speed_parameter?

5-letter words containing

• 5-letter words containing s

• 5-letter words containing s

• 5-letter words containing p

• 5-letter words containing r

• 5-letter words containing k

5-letter words starting with

• 5-letter words starting with a

• 5-letter words starting with o

• 5-letter words starting with e

• 5-letter words starting with a

• 5-letter words starting with n

5-letter words in the middle

• 5-letter words in the middle a

• 5-letter words in the middle b

• 5-letter words in the middle r

• 5-letter words in the middle h

• 5-letter words in the middle d

5-letter words ending with

• 5-letter words ending with p

• 5-letter words ending with b

• 5-letter words ending with l

• 5-letter words ending with i

• 5-letter words ending with i

5-letter words excluding

• 5-letter words excluding c

• 5-letter words excluding i

• 5-letter words excluding s

• 5-letter words excluding b

• 5-letter words excluding a