o       acculturation

o       acknowledgement of order

o       active listening

o       address

o       addressee

o       adjournment (of a meeting)

o       advice of despatch

o       agenda

o       analytical report

o       annual report

o       Any Other Business (AOB)

o       appeal to emotions

o       application letter

o       arm gesture

o       asynchronous communication

o       attendance

o       attention curve

o       attention span

o       attitude

o       audience

o       audience analysis

o       audience profile

o       audience resistance

o       authorisation

o       authorised report

o       avoiding style