What is the meaning of the word "rock"?

Definitions:

a diamond or other gemstone noun
- Did you see the rock on that ring?
a genre of popular music originating in the 1950s, usually featuring an electric guitar noun
- I usually listen to rock on the weekends.
a lump of ice, usually for drinks noun
- Can you add a couple of rocks to my whiskey?
a lump or mass of hard consolidated mineral matter noun
- They threw rocks at the window, which almost broke it.
hard bright-colored stick candy, typically flavored with peppermint noun
- I bought some rock at the beach.
pitching dangerously to one side noun
- The rock of the boat was making me feel ill.
someone who is strong and stable and dependable, figuratively noun
- You've always been a rock in my life and I really appreciate that.
to cause to move back and forth verb
- I rocked the cradle to put the baby to sleep.
to move back and forth or sideways verb
- The ship was rocking, throwing me off balance.