to show (how something works, its advantages, etc.)

(sing.) a variety of things, ideas, or products: 2. (sing.) the distance that a car, truck, airplane, or missile can travel without running out of fuel:array, spectrum

the way parts are put together or organized:

identical in all essentials or respects 2.similar in position, purpose, form, etc. 3.associated in a working or other relationship

closely connected, appropriate; applicable, pertinent