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.
Postal Service's available inbound LC/AO volume data is reported separately for surface and air, the Commission applied two separate REIMS II distributions.
Because there are inbound cards, the Commission assumed that the relationship between U.S. outbound cards and the total volume of outbound Air LC/AO mail applies to inbound mail Air LC/AO.
Second, it would be informative to divide the IC mail exchange into LC and AO components.
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.