Whoever
Definition 1 of 2
Pro Tip 1/3
Flexible Usage
You can use 'whoever' to refer to people in flexible situations without needing specific names. Whoever is available can start the project.
Pro Tip 2/3
Question and Answer
'Whoever' can be used in both questions and answers when the person is unknown or irrelevant. Whoever called earlier didn't leave a message.
Pro Tip 3/3
Indefinite Reference
'Whoever' refers to any person out of an indefinite group, without discrimination. Whoever has done this will be punished.