What is the meaning of Lower-case?

5-letter words containing

• 5-letter words containing u

• 5-letter words containing u

• 5-letter words containing e

• 5-letter words containing u

• 5-letter words containing e

5-letter words starting with

• 5-letter words starting with a

• 5-letter words starting with e

• 5-letter words starting with o

• 5-letter words starting with s

• 5-letter words starting with e

5-letter words in the middle

• 5-letter words in the middle e

• 5-letter words in the middle i

• 5-letter words in the middle a

• 5-letter words in the middle t

• 5-letter words in the middle m

5-letter words ending with

• 5-letter words ending with e

• 5-letter words ending with m

• 5-letter words ending with a

• 5-letter words ending with a

• 5-letter words ending with n

5-letter words excluding

• 5-letter words excluding m

• 5-letter words excluding t

• 5-letter words excluding e

• 5-letter words excluding b

• 5-letter words excluding o