This is the 14209th most frequent Spanish word.
tregua
A temporary pause or suspension of conflict or hostilities; a truce.
In this context, 'tregua' refers to a truce or temporary halt in conflict or disagreement.
Después de una larga discusión, decidirán una tregua.
After a long discussion, they will decide on a truce.
Here, 'tregua' is used metaphorically to signify a break or relief provided by the cessation of rain.
La lluvia dio una tregua a los agricultores.
The rain gave the farmers a respite.
In this usage, 'tregua' indicates an official ceasefire or suspension of hostile actions for a significant purpose.