Pronunciation: /ˈpɛni blæk/
noun a type of postage stamp issued in Britain in 1840, known for being the world's first adhesive postage stamp
A1 I found a Penny Black stamp in my grandfather's old collection.
A2 The Penny Black is considered the world's first adhesive postage stamp.
B1 Collectors often seek out Penny Black stamps for their historical significance.
B2 The Penny Black was issued in the United Kingdom in 1840.
C1 The Penny Black revolutionized the postal system by introducing prepaid postage.
C2 A rare Penny Black stamp in mint condition can fetch a high price at auction.
formal The Penny Black was the world's first adhesive postage stamp, issued in Great Britain in 1840.
informal Do you collect Penny Black stamps? I heard they're quite valuable.
slang I found a Penny Black stamp in my grandma's old letters - it's pretty cool!
figurative Her words were like a Penny Black stamp, leaving a lasting impression on everyone who read them.
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