ADZ
Advise
ABM
Abeam
ACPT
Accept
ATD
Actual time of departure
AFM
Affirmative
AFT
After
APSG
After passing
AGN
Again
ALERFA
Alert phase
ALTN
Alternate
APCH
Approach
ARR
Arrive
ATTN
Attention
AVBL
Available
BDRY
Boundary
BCST
Broadcast
CNL
Cancel
CFM
Confirm
CTC
Contact
CLR
Clear or cleared to
CLRSU
Clears you
CLRNC
Clearance
CF
Change to……frequency
CMB
Climb