Third-person singular simple present indicative form of jackhammer.(verb)
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Use "jackhammers" in a sentence
"Also, construction equipment such as jackhammers and trucks were equipped with mufflers in order to keep noise levels as low as possible."
"For a moment, let's look at South Waterfront from another point of view, as much a part of the place as the jackhammers and cranes and pioneers 'moving vans."
"Taman Fatahillah square and its surrounding area were closed to traffic, and jackhammers tore up the old pavement."