What is the meaning of σίγμα?

5-letter words containing

• 5-letter words containing a

• 5-letter words containing p

• 5-letter words containing m

• 5-letter words containing t

• 5-letter words containing n

5-letter words starting with

• 5-letter words starting with r

• 5-letter words starting with a

• 5-letter words starting with a

• 5-letter words starting with e

• 5-letter words starting with t

5-letter words in the middle

• 5-letter words in the middle a

• 5-letter words in the middle e

• 5-letter words in the middle s

• 5-letter words in the middle I

• 5-letter words in the middle o

5-letter words ending with

• 5-letter words ending with r

• 5-letter words ending with d

• 5-letter words ending with l

• 5-letter words ending with v

• 5-letter words ending with i

5-letter words excluding

• 5-letter words excluding t

• 5-letter words excluding o

• 5-letter words excluding s

• 5-letter words excluding a

• 5-letter words excluding b