thwack

Thwack is an onomatopoeic word used to describe a sharp, forceful sound, often associated with a blow or impact. It suggests a sudden, distinct noise that implies a solid object hitting something else with significant energy. The sound is typically short and resonant, not a prolonged or scraping noise.

The word is frequently employed in literature and informal speech to evoke a vivid auditory experience for the reader or listener. Examples of usage might include the sound of a whip cracking, a heavy object falling onto a surface, or a ball striking a bat. It conveys a sense of immediate action and impact. While not a technical term, "thwack" effectively communicates a particular type of sound through its phonetic quality. Its usage is generally understood across various English-speaking regions.