"New credit" refers to obtaining a fresh line of credit or loan, such as a credit card or loan from a bank. It means borrowing money from a lender for the first time or opening a new account to access credit. Full definition
You are also in the highest risk category if you try to apply for new credit card accounts. (think-creditcards.com)
Another trick, if you know you'll be needing a loan in the near future, is to avoid applying for new credit cards in the lead up to applying for the loan. (mybanktracker.com)
This category reflects factors such as the number of new credit accounts on your credit report. (epic.org)