What is the meaning of Significant_digit?

5-letter words containing

• 5-letter words containing e

• 5-letter words containing e

• 5-letter words containing o

• 5-letter words containing c

• 5-letter words containing r

5-letter words starting with

• 5-letter words starting with k

• 5-letter words starting with e

• 5-letter words starting with e

• 5-letter words starting with n

• 5-letter words starting with i

5-letter words in the middle

• 5-letter words in the middle n

• 5-letter words in the middle t

• 5-letter words in the middle e

• 5-letter words in the middle v

• 5-letter words in the middle e

5-letter words ending with

• 5-letter words ending with u

• 5-letter words ending with k

• 5-letter words ending with g

• 5-letter words ending with e

• 5-letter words ending with c

5-letter words excluding

• 5-letter words excluding i

• 5-letter words excluding r

• 5-letter words excluding a

• 5-letter words excluding i

• 5-letter words excluding k