a) plantation, planter, plantation
b) preparation, preparer, preparedness
c) dictation, dictator, dictatorial
d) expression, expresser, expressive
e) combination, combiner, combinatory
f) education, educator, educational
g) demonstration, demonstrator, demonstrative
h) celebration, celebrant, celebratory
Example sentences:
1) The planter carefully tended to his plantation, ensuring each plant received enough water and sunlight.
2) The educator spent hours preparing her lesson plans, making sure to include engaging activities for her students.
3) The dictator dictated harsh rules to his subjects, leaving little room for dissent.