This is the 9356th most frequent Portuguese word.
clareza
Clareza: clarity or clearness.
Here, 'clareza' refers to the quality of being clear or understandable in speech or explanation.
Ela explicou o conceito com clareza.
She explained the concept with clarity.
In this case, 'clareza' describes the transparency or purity of the lake's water.
A clareza das águas desse lago é impressionante.
The clarity of the waters of this lake is impressive.
Here, 'clareza' suggests a precise understanding or definition of something, such as objectives.