How to Say "mermaid" in Spanish
The Spanish word for “mermaid” is “sirena” — B1 level.
English → SpanishB1
nounB1
mythical creature, half-woman, half-fish

Examples
La sirena tenía el cabello largo y una hermosa cola verde.
The mermaid had long hair and a beautiful green tail.
Según la leyenda, las sirenas cantaban para atraer a los barcos.
According to legend, the sirens sang to attract the ships.
Mythology Connection
In Spanish, the same word 'sirena' refers both to the half-fish creature (mermaid) and the dangerous Greek mythological figures (sirens) known for their captivating songs.
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