Meaning: Extreme amusement, especially when expressed by laughter. Boisterous merriment.
Synonyms: Amusement, mirth, laughter, merriment, lightheartedness, levity, fun, humor, jocularity, jollity, gaiety, glee, delight, exuberance, high spirits, comedy.
Use: The comedian was pleased when the audience responded with hilarity to his jokes.
We enjoy thirty minutes of hilarity by playing funny games with our kid before going to bed.