QSO
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
To communicate (with) by means of amateur radio.
Register: slang
Where it’s used:
Used
American English
Examples
The basic award is issued when 500 countries have been successfully QSOed on the three bands.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “QSO” mean?
To communicate (with) by means of amateur radio.
Is “QSO” formal or informal?
QSO is generally slang.