Sterling describes something of exceptionally high quality or value. When a soccer player turns in a sterling performance, she plays brilliantly, maybe scoring crucial goals and assisting teammates with perfect passes. When someone has a sterling reputation, they're known for being consistently trustworthy and excellent at what they do.

Real sterling silver contains 92.5% pure silver, mixed with a small amount of copper for strength. Because British money was so reliably valuable for centuries, “sterling” came to mean anything genuinely excellent and dependable.

You'll often hear people praise someone's sterling character or sterling qualities, meaning the person consistently does the right thing and treats others well. A student with a sterling academic record doesn't just get good grades once in a while but maintains excellence over time. The word suggests more than a single great moment: it means reliable, proven quality you can count on. When something is sterling, it's the real deal, tested and true.

As a noun, sterling can also mean British money, especially the British pound.