1. dyadic operation an operation on exactly two operands
  2. alliteration use of the same consonant at the beginning of each word
  3. monadic operation an operation with exactly one operand
  4. cooperation the practice of working together on a common enterprise
  5. logic operation an operation that follows the rules of symbolic logic
  6. trading operations financial transactions at a brokerage
  7. dedication complete and wholehearted fidelity
  8. deliberation careful consideration
  9. black operation a covert operation not attributable to the organization carrying it out
  10. vituperation abusive or venomous language to express blame or censure
  11. sting operation a complicated confidence game planned and executed with great care (especially an operation implemented by undercover agents to apprehend criminals)
  12. desperation a state in which all hope is lost or absent
  13. recuperation gradual healing through rest
  14. discoloration the act of changing something by making it duller or dingier
  15. deterioration process of changing to an inferior state
  16. decoration the act of adorning something
  17. matrix operation a mathematical operation involving matrices
  18. rescue operation an operation organized to free from danger or confinement
  19. declaration a statement that is emphatic and explicit
  20. degeneration the process of declining from a higher to a lower level