Englishfor English speakers
clamp
Noun
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A clamp is a device that holds and fixes machine elements together.
clamp
Verb
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If you clamp something, you fasten it in place or together with a clamp.
Please use a vise to clamp the pieces of wood together.
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If you clamp onto something, you hold it tightly.
She had to clamp a hand over her mouth to stop herself from laughing.
boundary
Noun
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A boundary is the line around something's outside edge.
The elephants have to live within the boundary of the park or risk being shot.
There have been many times in their lives when the boundaries between their personal and professional lives have disappeared.
More manufactured goods are crossing international boundaries every day.
An international commission that regulates the boundary waters between the U.S. and Canada.