What is "axp"

n. (context star English) (initialism of anomalous X-ray pulsar English)

AXP may refer to:

• The Cisco Systems Application eXtension Platform, a terminated product
• In computing, as an abbreviation associated with the DEC Alpha instruction set architecture
• In astronomy, as an abbreviation for Anomalous X-ray pulsar
• the NYSE ticker symbol for American Express
• The National Rail code for Alexandra Parade railway station, United Kingdom
• The Greek letters for the National Fraternity of Alpha Chi Rho (ΑΧΡ)
• Automotive X PRIZE