Top Definition
psa
Publice Service Announcement. Rarely used as an acronym.
This following snow warning is a public service announcement.
автор: Naugahyde 6 марта 2004

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psa
A protein made specifically by the prostate gland -- Prostate Specific Antigen. It is measured by a blood test, and is used for screening for prostate cancer and checking for the results of treating that disease.
James saw his doctor today, since he was upset that his PSA was over ten thousand (normal is up to four). Then he went to make final arrrangements.
автор: Dr. Rosebud 2 июля 2005

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PSA
Pacific Southwest Airlines headquartered in San Diego, California. Featured Smileliners (Airplanes with smiles painted on the nose). Purchased by USAir in 1987
"PSA, Catch our smile!"
автор: uva185 4 мая 2006

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PSA
Profound and Sincere Apologies
For use in emails, "I completely messed up PSA"
автор: Emmsb 12 января 2011

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psa
Personal sale assisant
This PSA told me I should upgrade my computer instead of buying a new one.
автор: Alexandre22 17 ноября 2007

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PSA
Parts and Service Agreement
"Did my boss give you a copy of the PSA that our new vendor signed this morning?
автор: ffmcobalt 27 июля 2005

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PSA
Proud Sluts Association
Sara:"Did you look at Valerie today?"
Nicole:"Yeah she looks like a member of the PSA"
автор: nikki_18 24 июня 2010

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