ASA

1. Advertising Standards Authority
2. Amateur Swimming Association
3. American Standards Association (now known as ANSI, but still used to denote the speed of photographic film)

• exterminators
• exterminatory
• extermine
• extermined
• extermines
• extermining
• extern
• external
• external-combustion engine
• external-combustion engines
• external degree
• external examination
• external examinations
• external examiner
• external examiners
• externalisation
• externalise
• externalised
• externalises
• externalising
• externalism
• externalisms
• externalist
• externalists
• externalities