ad 1
/ad/ , n.
1. advertisement.
2. advertising: an ad agency.
[ 1835-45; by shortening ]
ad 2
/ad/ , n. Tennis.
1. advantage (def. 5).
2. ad in , the advantage being scored by the server.
3. ad out , the advantage being scored by the receiver.
[ 1945-50; by shortening ]
ad 3
/ad/ , prep.
(in prescriptions) to; up to.
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