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per annum

American  
[per an-uhm] / pər ˈæn əm /

adverb

  1. by the year; yearly.


per annum British  
/ pər ˈænəm /

adverb

  1. every year or by the year

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of per annum

Borrowed into English from Latin around 1595–1605

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Some residents of Lisburn Square say their service charges were about £1,400 per annum in 2018, but the figure has risen to more than £4,300 for the last financial year.

From BBC Sep. 2, 2026

The US is planning to double production rates from around 600 Patriot missiles per annum to 2,000, but that'll take several years.

From BBC Aug. 24, 2026

Population growth of 2% per annum in the U.S. far outstrips the 0.8% of the United Kingdom, while the U.S.’s real GDP is substantially higher at 3.6% versus 2.1%.

From MarketWatch Jul. 3, 2026

“We estimate this creates A$150 million per annum of Waitsia production delivered with zero revenue recognition,” Morgans says.

From The Wall Street Journal Feb. 11, 2026

NOTE.—Standing alone, per- signifies by: as, per annum, by the year.

From New Word-Analysis by William Swinton

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