What literary devices allows a material object to stand for something else and have a deeper meaning

Which of the fallowing is true about plays

What is the best definition of detonation a.) the meaning of the word in a different language b.)the dictionary meaning of the word c.) the additional meaning that comes from the feeling one gets from a word d.) the meaning of irony

Throughout the memoir, the prisoners are made equal in the way they are treated, and again, eliezer sees their equality in another way. how does he describe the equality?