This is the 11131st most frequent Turkish word.
duyduğumuzda
"When we hear" or "when we heard."
The word 'duyduğumuzda' is used to indicate a specific point in time in the past when the action of hearing occurred.
Bu haberi duyduğumuzda çok sevindik.
When we heard this news, we were very happy.
Here, 'duyduğumuzda' conveys the circumstance of hearing that triggered the subsequent action.
Onu duyduğumuzda hemen yardıma koştuk.
When we heard him, we immediately rushed to help.
In this sentence, 'duyduğumuzda' is functioning similarly, representing the temporal context tied to the act of hearing.