What is the meaning of Regex?

5-letter words containing

• 5-letter words containing l

• 5-letter words containing e

• 5-letter words containing c

• 5-letter words containing a

• 5-letter words containing c

5-letter words starting with

• 5-letter words starting with a

• 5-letter words starting with b

• 5-letter words starting with g

• 5-letter words starting with l

• 5-letter words starting with c

5-letter words in the middle

• 5-letter words in the middle t

• 5-letter words in the middle g

• 5-letter words in the middle g

• 5-letter words in the middle g

• 5-letter words in the middle r

5-letter words ending with

• 5-letter words ending with e

• 5-letter words ending with s

• 5-letter words ending with h

• 5-letter words ending with e

• 5-letter words ending with c

5-letter words excluding

• 5-letter words excluding l

• 5-letter words excluding v

• 5-letter words excluding e

• 5-letter words excluding c

• 5-letter words excluding i