What is the meaning of Non-standard?

5-letter words containing

• 5-letter words containing i

• 5-letter words containing r

• 5-letter words containing m

• 5-letter words containing c

• 5-letter words containing r

5-letter words starting with

• 5-letter words starting with t

• 5-letter words starting with o

• 5-letter words starting with k

• 5-letter words starting with e

• 5-letter words starting with a

5-letter words in the middle

• 5-letter words in the middle l

• 5-letter words in the middle o

• 5-letter words in the middle i

• 5-letter words in the middle s

• 5-letter words in the middle w

5-letter words ending with

• 5-letter words ending with c

• 5-letter words ending with i

• 5-letter words ending with l

• 5-letter words ending with i

• 5-letter words ending with n

5-letter words excluding

• 5-letter words excluding o

• 5-letter words excluding m

• 5-letter words excluding i

• 5-letter words excluding c

• 5-letter words excluding i