The meaning of the Acronym PTA is...

PTA is

• Prepaid Ticket Advice
• Prior To Arrival

More Meanings For PTA:

• PPP (Pont-to-Point Protocol) Termination Aggregation
• Pre Transmission Audit
• Pakistan Telecommunication Authority
• Purified Terephthalic Acid
• Polynomial Time Algorithm
• Procrustes Target Analysis
• Pure Tone Average
• Practical Teaching Assignment
• Pretentious Twittering Assholes
• Parents Talking Alot
• Papyrus Trans Am
• Pretty Tired Already
• Paranormal Teraindustriational Activators
• Promise To Attend
• Personal Time Alone

PTA is also in:

• Adults
• Chemistry
• Funnies
• Mathematics
• Networking
• Ocean Science
• Physics
• Science Fiction
• Telecom
• Toastmasters
• Unfiled
• Universities