Dictionary
1ad
noun, often attributive \ˈad\
2ad
noun
AD
abbreviation
Definition of AD
1
active duty
2
after date
3
Alzheimer's disease
4
anno Domini —often printed in small capitals and often punctuated
5
assembly district
6
assistant director
7
athletic director
See AD defined for English-language learners
AD Defined for Kids
ad
noun \ˈad\
Definition of AD for Kids
Learn More About AD
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