This is the 2667th most frequent Portuguese word.
ondas
"Waves."
Here, 'ondas' refers to 'waves' in the context of sea or ocean, which is a common use in descriptions of natural phenomena.
As ondas do mar estavam tranquilas hoje.
The waves in the sea were calm today.
In this sentence, 'ondas' signifies electromagnetic waves, specifically radio frequencies, used in scientific and technological contexts.
Ele estuda as ondas de rádio para sua pesquisa.
He studies radio waves for his research.
'Ondas' here is used metaphorically to describe episodes of high temperatures, as a linguistic application of the pattern 'wave' to phenomena.