The meaning of the Acronym A is...

A is

• Against

More Meanings For A:

• Archived
• form A (normally open) contacts
• All
• Atom
• Argon
• form A (normally open) contacts
• Anode
• Australian
• Anglo American Cataloguing Rule
• Against
• Ampere
• Advanced
• Art
• The Arts
• Apron

A is also in:

• Chemistry
• Clothes
• Electronics
• General
• Geology
• Hardware
• Libraries
• Mathematics
• Physics
• Telecom
• Universities