Definition

A powerful tool used for breaking up hard surfaces like concrete or rock, which works by rapidly striking the surface with a chisel or similar attachment.

Example

The construction workers used a jackhammer to break up the old pavement.

Conversation

Did you hear that loud noise outside?

Yeah, it sounds like someone is using a jackhammer.

I wonder what they're working on this time.

Probably fixing the road — they always use a jackhammer for that.

Synonyms & Antonyms

Root Explanation

Jackhammer → The word is formed from "jack" (originating from Middle English *jakke*, a diminutive of *Jack*, often used to refer to a man or a tool) and "hammer" (from Old English *hamor*, meaning a tool for striking). The term "jackhammer" refers to a tool that strikes with force, typically used for breaking up pavement or concrete.

Memory Tip

Think of a 'jack' as a tool or man and a 'hammer' as a striking tool — together, they create a powerful tool for breaking things apart.

Visually Confused Words