English version

safety pin

From Longman Dictionary of Contemporary Englishsafety pinˈsafety pin noun [countable]  safety_pin.jpg DHHa metal pin for fastening things together. The point of the pin fits into a cover so that it cannot hurt you.
Examples from the Corpus
safety pinI love those ones where there's a piece of cloth just with a safety pin or something like that.The maroon dress was neatly folded, and the coral necklace carefully pinned to the bodice with a large safety pin.Heating an implement made of a straightened safety pin, he speared the bugs, then brought them to the candle flame.Later the gadget acquired a popular name - the safety pin - and made some one else very rich.
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