The dictionary definition of compare (verb) is to view something in relation to another. In math, to compare means to examine the differences between numbers, quantities or values to decide if it is greater than, smaller than or equal to another quantity.
An example of compare is noticing how much two sisters look alike. To consider or describe as similar, equal, or analogous; liken. Is it right to compare the human brain to a computer? To examine in order to note the similarities or differences of.
I mean the encyclopedia is 40 years old, and it cant be factual or reliable because she failed it. It never said anything about it being valuable so theres your answer. (I also knew the word beforehand but theres some sort of explanation)