Sum
Part of speech: noun
Definition: A quantity obtained by addition or aggregation. An arithmetic computation, especially one posed to a student as an exercise (not necessarily limited to addition.) A quantity of money. A summary. A central idea or point. The utmost degree. An old English measure of corn equal to the quarter. The basic unit of money in Kyrgyzstan. The basic unit of money in Uzbekistan.
Part of speech: verb
Definition: To add together. To give a summary of.
Example sentence: The whole is more than the sum of its parts.
Kernel
Part of speech: noun
Definition: The core, center, or essence of an object or system.The central (usually edible) part of a nut, especially once the hard shell has been removed.A single seed or grain, especially of corn or wheat.The central part of many computer operating systems which manages the system's resources and the communication between hardware and software components.The stone of certain fruits, such as peaches or plums.Those elements, in the domain of a function, which the function maps to zero.
Example sentence: It's not even my job to educate, but what I do is try to facilitate by creating a book that works on different levels. I do want to entertain and bring some joy to the reading experience. If it holds a little kernel of knowledge that readers choose to explore, well, that's great.