How to Say "to furrow" in Spanish
The Spanish word for “to furrow” is “arar” — C1 level.
English → SpanishC1
verbC1formal
creating deep lines or wrinkles

Examples
El barco comenzó a arar las aguas del Atlántico.
The ship began to plow through the waters of the Atlantic.
El tiempo empezó a arar su frente con arrugas profundas.
Time began to furrow his forehead with deep wrinkles.
La quilla del velero ara la espuma blanca.
The sailboat's keel cuts through the white foam.
Metaphorical use
Just as a plow leaves a line in the dirt, you can use this word for anything that leaves a physical 'line' or 'trail' through a surface.
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