Summation
Part of speech: noun
Definition: A summarization. An adding up of a series of items.
Plus
Part of speech: preposition
Definition: increased bywith; having in addition
Part of speech: noun
Definition: A positive quantity.An asset or useful addition.A plus sign: +.
Part of speech: conjunction
Definition: and also; in addition
Part of speech: adjective
Definition: Being positive rather than negative or zero.Positive, or involving advantage.Electrically positive.
Example sentence: Chemistry is a class you take in high school or college, where you figure out two plus two is 10, or something.