When would you use the word thru in a sentence, and, when would you use through.
—Lauren, December 15, 2001
Here is a definition of thru from the Infoplease Dictionary. It is just an informal usage of the word through, so it would only be appropriate to use it for something unimportant. Writing e-mails, etc... Not for homework, reports, or anything that will be corrected or looked at for spelling and grammar.