All 6 Uses

Mecca
in
I Am Malala
(Edited)

It was as if under Zia jihad had become the sixth pillar of our religion on top of the five we grow up to learn—the belief in one God; namaz, or prayers five times a day; giving zakat, or alms; roza, fasting from dawn till sunset during the month of Ramadan; and Haj, the pilgrimage to Mecca, which every able-bodied Muslim should do once in their lifetime.
p. 33.2

Mecca = the birthplace of Muhammad and the holiest city of Islam (located in Saudi Arabia)
So everyone spoke with great authority, celebrating like the Prophet, PBUH, when he conquered Mecca, though his speech was one of forgiveness not cruel victory.
p. 172.5
My father says, "If I had known this would happen, I would have looked back for a last time just as the Prophet, PBUH, did when he left Mecca to migrate to Medina."
p. 306.4
I went to a shopping mall with my mother, as she wanted to buy a special burqa to pray in Mecca.
p. 308.7 *
We believe that when we have our first sight of the Kaaba, the black-shrouded cube in Mecca that is our most sacred place, any wish in your heart is granted by God.
p. 308.9
But when we went to the other holy places in the desert of Mecca where the Prophet, PBUH, lived and preached, I was shocked that they were littered with empty bottles and biscuit wrappers.
p. 309.1

Definitions:

(1) (Mecca as in: pilgrimage to Mecca)
the birthplace of Muhammad and the holiest city of Islam (located in Saudi Arabia)
(2) (mecca as in: a mecca for young artists)
a place that attracts many visitors
(3) (meaning too rare to warrant focus)
Less commonly, Mecca can be a person's name.