What is another word for a clap of thunder?

There isn't a perfect one-word synonym for "clap of thunder." However, depending on the context, you could use these options:

Similar in meaning:

* Roar: Emphasizes the loud, powerful sound.

* Boom: Focuses on the sudden, explosive nature.

* Crack: Highlights the sharp, sudden noise.

* Crash: Emphasizes the force and impact of the sound.

* Rumble: Describes a prolonged, rolling sound.

* Bang: Short, sharp, and powerful.

Figurative language:

* Thunderclap: More poetic and formal than "clap of thunder."

* Peal of thunder: Suggests multiple, distinct sounds.

Ultimately, the best alternative depends on the specific nuance you want to convey.