This is the 1198th most frequent Turkish word.
yağmur
Rain.
The word 'yağmur' is used as a noun meaning 'rain'.
Bugün hava çok güzel ama yarın yağmur yağacak.
Today, the weather is very nice, but it will rain tomorrow.
Here, 'yağmur' is used as a noun associated with the phrase 'under the rain', describing an atmospheric condition.
Yağmur altında yürümek çok huzur verici olabilir.
Walking under the rain can be very calming.
In this usage, 'yağmur' is referred as a subject of warning, again as a noun meaning 'rain'.