Englishfor English speakers
AD
Abbreviation
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AD is short for the Latin words anno Domini, which means in the year of our Lord. You use AD to refer to a date after the year in which Jesus Christ is believed to have been born.
The Romans started building the Colosseum in 70 AD.
ad
Noun
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A short way of saying advertisement.
I saw an ad in the newspaper for a job at the factory.
insertion
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noun
the act of putting one thing into another
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noun
(= interpolation)
a message (spoken or written) that is introduced or inserted
with the help of his friend's interpolations his story was eventually told
with many insertions in the margins