Longman Dictionary of Contemporary English homepage

Topic: CHRONOLOGY

Date: 1600-1700
Language: Latin
Origin: 'by the year'

per annum

 adverb
     
per an‧num written abbreviation p.a.
formalTMC for each year:
a salary of $40,000 per annum
Definition of per annum from the Longman Dictionary of Contemporary English within
the topic CHRONOLOGY
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