An artifact that is one of the individual parts of which a composite entity is made up; especially a part that can be separated from or attached to a system
(Noun)
A fundamental irreducible constituent of a whole
(Noun)
Synonyms:
  1. fundamentals
  2. rudiments
  3. essentials
  4. basic material
  5. grammar
  6. abc's
  7. initial stage
  8. first-principles
  9. basis
  10. beginning
  11. first steps
  12. principles
  13. principia
  14. basic work
  15. groundwork
  16. grounding
  17. nut and bolts
  18. nitty-gritty
  19. brass-tacks
  20. basics
An individually considered portion of a whole
(Noun)