Words similar to ao

Example sentences for: ao

How can you use “ao” in a sentence? Here are some example sentences to help you improve your vocabulary:

Generally, LC mail is lighter than AO mail.
For Surface LC/AO mail, the distribution for flats and small packets combined was used for two reasons.
This amount represents 7.4 percent of the revenues raised from international postage rates applicable to LC and AO mail dispatched to foreign postal administrations (excluding Canada).
It seems likely that U.S. and foreign mailers would prepare AO mail so that it would qualify for lower domestic rates applicable to printed matter and/or lower priority delivery.
Hence, it appears likely that the proportion of LC to AO mail is less for inbound mail than for outbound.