half-century

British  

noun

1. a period of 50 years

   during the past half-century

2. 1. a score or grouping of 50

      a half-century of points

   2. ( as modifier )

      as I near the half-century mark

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Example Sentences

The U.S. has deeply embedded itself in the world’s financial machinery over the past half-century, with 57% of global foreign-exchange reserves in dollars.

From Barron's

In March, the U.S. military completed a series of test flights of a reusable hypersonic rocket-powered aircraft for the first time in more than a half-century.

From The Wall Street Journal

Higgins, 50, the oldest finalist at one of the Triple Crown events, began confidently in his bid to win the prestigious invitational event for the first time since 2006, taking the opener with a half-century.

From BBC

“The last time the Chiefs won a Super Bowl, which was a half-century ago, the economy fell immediately into a recession,” Williams counseled.

From MarketWatch

Olise's two assists brought his tally to 25 in 50 league games, more than any other player to have played a half-century of Bundesliga matches.

From Barron's