parts or features of something

(a)  

enthusiasm for doing something

(a)  

a different option to choose

(a)  

particular or exact

(a)  

existing in a technological environment

(a)  

communication between things or people

(a)  

important or noticeable

(a)  

the most important part of something

(a)  

a part which makes up something bigger

(a)  

a basic idea or rule

(a)