restrained from movement; bound

Sentence: With their feet manacled, the prisoners couldn't walk anywhere.

calmness, collectedness

Sentence: An important part of taking a big test is keeping your composure.

something that seems or looks real but is not

Sentence: The magic trick where a woman is sawed in half on stage is just an illusion.

in accordance with the law or rule; legit ("real deal")

Sentence: Make sure that if you shop online, you only buy from legitimate businesses. 

restricting or limiting the freedom of action

Sentence: The miners in Chile are trapped in a confining space; hopefully none of them is claustrophobic.

to invent, plan or think up

Sentence: See if you can devise a way to cure cancer or AIDS when you grow up.

freeing or removing from an entanglement 

Sentence: Extricating yourself from a difficult friendship can be hard.

causing torture or pain; agonizing

Sentence: The miners in Chile are surviving torturous conditions while trapped in a small, dark place.

causing astonishment or wonder; marvelous

Sentence: Michael Jackson was a stupendous dancer, the likes of which we may never see again.

understand or comprehend

Sentence: No one could fathom how Houdini was able to escape from nearly any situation.