All 6 Uses

obituary
in
Harry Potter (#7) and the Deathly Hallows
(Edited)

Harry finished reading, but continued to gaze at the picture accompanying the obituary.
Chpt 2

obituary = published notice of death with a short biography
He had thought he knew Dumbledore quite well, but ever since reading this obituary he had been forced to recognize that he had barely known him at all.
Chpt 2 *
After several minutes' thought, Harry tore the obituary out of the Prophet, folded it carefully, and tucked it inside the first volume of Practical Defensive Magic and its Use against the Dark Arts.
Chpt 2
He was vaguely familiar: Racking his brains, Harry suddenly realized that this was Elphias Doge, member of the Order of the Phoenix and the writer of Dumbledore's obituary.
Chpt 8
"I saw the obituary you wrote for the Daily Prophet," said Harry.
Chpt 8
I noticed how you skated over the sticky patches in that obituary of yours!
Chpt 8

Definitions:

(1) (obituary)
a published notice of someone's death -- usually printed in a newspaper with a short biography

The section of the newspaper that reports deaths is called the "Obituaries".
(2) (meaning too rare to warrant focus)