Tools or devices used to open containers, or the first performers in a series of acts.
From 'open' + '-er' (agent suffix), literally meaning 'things that open'. The entertainment sense developed in the 20th century from the idea of 'opening' a show or event.
The humble bottle opener represents one of humanity's most persistent struggles - the eternal battle between our desire to access contents and manufacturers' determination to keep them sealed. Meanwhile, musical 'openers' face the psychological challenge of warming up an audience without stealing thunder from the main act, a delicate art of controlled enthusiasm.
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