Cases of word usage

1) the most basic or simplest parts (basics)

2) the basic substance used to make, develop, build, measure etc something (basis)

3) (of a word) to suggest (something) in addition to its basic meaning (connote)

4) involving the pursuit of pleasure as a basic theme (after the Greek philosopher Epicurus) (epicurean)

5) of great importance; basic (fundamental)

6) a thorough teaching of the basic details of a subject (grounding)

7) (an instance of) a change in the basic structure of a living or developing organism which can affect the shape, size etc (mutation)

8) (of a person) having good basic ability in mathematics (numerate)

9) a long, flat piece of wood; a basic principle in a political policy (plank)

10) exactly; to find the essential or basic cause or reason of (something) (plumb)