1. “The Tell-Tale Heart”

2. acute The old man’s acute hearing alerted him to the intruder.

3. dissimulation Mary’s dissimulation about the problem made it difficult to know her feelings.

4. profound The profound old man was very knowledgeable about world affairs.

5. sagacity John’s consistent sagacity made it quite clear that he would make a wise decision about his future.

6. crevice The crevice in the door made it possible for us to peek inside the haunted house.

7. suavity With perfect suavity, Matt approached Mary and asked her to dance.

8. gesticulations From afar we could tell by the man’s violent gesticulations that he was angry at the driver who ran into him.

9. derision Nothing is more intolerable than derision from one’s classmates.