What is the meaning of σίγμα?

5-letter words containing

• 5-letter words containing g

• 5-letter words containing e

• 5-letter words containing e

• 5-letter words containing r

• 5-letter words containing l

5-letter words starting with

• 5-letter words starting with d

• 5-letter words starting with k

• 5-letter words starting with n

• 5-letter words starting with i

• 5-letter words starting with e

5-letter words in the middle

• 5-letter words in the middle l

• 5-letter words in the middle y

• 5-letter words in the middle c

• 5-letter words in the middle r

• 5-letter words in the middle i

5-letter words ending with

• 5-letter words ending with e

• 5-letter words ending with i

• 5-letter words ending with r

• 5-letter words ending with l

• 5-letter words ending with t

5-letter words excluding

• 5-letter words excluding e

• 5-letter words excluding e

• 5-letter words excluding e

• 5-letter words excluding i

• 5-letter words excluding t