An email, letter, or other correspondence that lists five key points numbered 1 through 5. Pronounced One-ta-Five.
Hello - just a quick 1-5 for you to read through.
1. How's everything going?
2. I haven't talked to you in a while.
3. Did you get my email last week?
4. That was a great DR meeting.
5. Can't wait to see you tomorrow!