whomever
Whomever (pron) means the object form of "whoever," referring to any person, whichever one it may be. Example: “Give the tickets to whomever arrives first.”
How to use whomever
Learner’s notesIn plain EnglishA formal way of saying "whoever," used as an object.
Quite formal — most everyday speech uses "whoever" in both subject and object roles.
Fill the gap
Can you complete this real example?
Give the tickets to _____ arrives first.
Etymology
Formed from whom plus ever, mirroring the whoever/whomever pair the way who/whom works.