Nadjiverb
A word that acts like a chameleon. It can be a noun, adjective, verb, or adverb. It just changes colors without telling you.
'Shake' is a verb when you move your hand. It's a noun when you're getting a drink. And it's an adjective when you're nervous.
I 'cried' in the hallway. I was a 'crier'. And the hallway was 'cried' in.
He 'slept' through the whole class. He was a 'slept' man. And the class was 'slept' through.