What is the meaning of Lower-case?

5-letter words containing

• 5-letter words containing n

• 5-letter words containing s

• 5-letter words containing k

• 5-letter words containing s

• 5-letter words containing u

5-letter words starting with

• 5-letter words starting with d

• 5-letter words starting with o

• 5-letter words starting with p

• 5-letter words starting with d

• 5-letter words starting with o

5-letter words in the middle

• 5-letter words in the middle l

• 5-letter words in the middle e

• 5-letter words in the middle t

• 5-letter words in the middle t

• 5-letter words in the middle c

5-letter words ending with

• 5-letter words ending with c

• 5-letter words ending with n

• 5-letter words ending with e

• 5-letter words ending with o

• 5-letter words ending with s

5-letter words excluding

• 5-letter words excluding a

• 5-letter words excluding r

• 5-letter words excluding p

• 5-letter words excluding o

• 5-letter words excluding u