By rearranging the letters of the word "winter" I have Listed 32 words below (excluding the word winter) that you are able to make using them.
Let me know in the comments section if you can think of anymore.
Tire *reader suggestion*
For a list of how many words you can make out of the word Spring click here
For a list of how many words you can make out of the word Summer click here
For a list of how many words you can make out of the word Autumn click here