What is the meaning of Multiple-choice?

5-letter words containing

• 5-letter words containing r

• 5-letter words containing s

• 5-letter words containing n

• 5-letter words containing i

• 5-letter words containing o

5-letter words starting with

• 5-letter words starting with e

• 5-letter words starting with r

• 5-letter words starting with a

• 5-letter words starting with r

• 5-letter words starting with a

5-letter words in the middle

• 5-letter words in the middle n

• 5-letter words in the middle i

• 5-letter words in the middle l

• 5-letter words in the middle m

• 5-letter words in the middle p

5-letter words ending with

• 5-letter words ending with a

• 5-letter words ending with r

• 5-letter words ending with e

• 5-letter words ending with v

• 5-letter words ending with a

5-letter words excluding

• 5-letter words excluding e

• 5-letter words excluding r

• 5-letter words excluding h

• 5-letter words excluding c

• 5-letter words excluding e