1. jack of all trades a man skilled in various odd jobs and other small tasks
  2. Jack of all trades a person able to do a variety of different jobs acceptably well
  3. occult arts supernatural practices and techniques
  4. infiltrate pass through an enemy line in a military conflict
  5. acculturate assimilate culturally
  6. infiltrator someone who takes up a position surreptitiously for the purpose of espionage
  7. jackfruit tree East Indian tree cultivated for its immense edible fruit and seeds
  8. extrados the exterior curve of an arch
  9. acute gastritis gastritis caused by ingesting an irritant
  10. acid anhydrides organic compounds that react with water to form an acid
  11. obliterate remove completely from recognition or memory
  12. acculturative of or relating to acculturation
  13. acyl anhydrides organic compounds that react with water to form an acid
  14. aqua fortis acid used especially in the production of fertilizers and explosives and rocket fuels
  15. jack ladder (nautical) a hanging ladder of ropes or chains supporting wooden or metal rungs or steps
  16. antitrades wind in the upper atmosphere blowing above but in the opposite direction from the trade winds
  17. Yucca filamentosa yucca with long stiff leaves having filamentlike appendages
  18. adulterate make impure by adding a foreign or inferior substance
  19. equivalent word two words that can be interchanged in a context are said to be synonymous relative to that context
  20. man of letters a man devoted to literary or scholarly activities