Find a Name in your Outlook Address Book
https://www.computersprofessor.com/2017/06/find-name-in-your-outlook-address-book.html?m=0
Find a Name in your Outlook Address Book:
Quickly
locate a user in your address book or a company address book by typing portions
of the name or alias and pressing Ctrl+K.
For
example, if you wanted to send a mail to John Doe, typing "jo do" and
then press Ctrl+K to automatically complete the name John Doe, unless other
names exist with "jo" and "do."
Auto-completion
of names in the Address Book is very helpful when searching a large address book,
especially when you don't know how to spell someone's name.
