always there, certain, constant, faithful, loyal, responsible, rock, secure, stable, staunch, steadfast, steady, sure, tried, true, trustworthy, trusty, unfailing

amuse, cosset, cradle, cuddle, dance, fondle, love, nuzzle, pet, play, rock, sport, toss, toy, toy with

broken, cragged, harsh, precipitous, rock-bound, rocky, rough, rugged, scabrous, scraggy, stony, uneven, unlevel, unsmooth

bluff, crag, escarpment, face, precipice, scar, scarp, steep rock,

bouldered, craggy, flinty, hard, inflexible, jagged, lapidarian, lithic, pebbly, petrified, petrous, rock-ribbed, rockbound, rough, solid, stonelike, stony

rock formed from sediment 
Synonyms:   chalk, chemical sedimentary rock, clastic rock, conglomerate, limestone, lithified sediment, mechanical sedimentary rock, nonclastic rock, sandstone, shale, stratified 

  adamantine, flinty, impenetrable, indestructible, rock-hard, tough, unbreakable 

breastwork, bulwark, citadel, defense, fortification, fortress, mainstay, parapet, prop, protection, rock, stronghold, support, tower

bedrock, boulder, cobblestone, crag, crust, earth, gravel, lava, lodge, mass, metal, mineral, ore, pebble, promontory, quarry, reef, rubble, shelf, slab, slag, thrum, thrump-cap

Q: What's a rock's favourite song?
A: We will, we will, ROCK you!

Q: What will a rock genie do when you tell it your wish?
A: It'll granite! (It'll grant it!)

Q: Where is a rocks favorite place to explore?
A: The Rocky Mountains.

Q: Where do rocks like to spend their summer?
A: At Pebble Beach.

Q: What did the winning rock say to his losing opponent?
A: You just hit rock bottom!

Q: Where is grandma rock's favorite place to sit?
A: Her ROCKing chair!

Q: What did the rock say to the rolling stone?
A: Let's rock and roll!

Q: What did the stone drink?
A: Soda on the rocks!

Q: What did the stone eat?
A: Rock cakes!

Q: Where do pebbles grow up?
A: In the rockery!

Q: Where did the stone go to dance?
A: The Crystal Ball!

Q: What do you call a skinny rock?
A: Crystalline!

Q: What did the rock want to do?
A: Rock and roll.

Q: What does a rock want to be when it grows up?
A: A rock star.

Q: Where do rocks sleep?
A: Bedrock.

Q: What is a rock's favorite transportation?
A: A rocket.