signature
US /ˈsɪɡ.nə.tʃɚ/
UK /ˈsɪɡ.nə.tʃɚ/

1.
firma
a person's name written in a distinctive way as a form of identification in authorizing a document or agreement
:
•
Please put your signature at the bottom of the form.
Por favor, ponga su firma al final del formulario.
•
The contract requires both parties' signatures.
El contrato requiere las firmas de ambas partes.
2.
sello, rasgo distintivo, marca
a distinctive pattern, product, or characteristic by which someone or something can be identified
:
•
The artist's unique brushstrokes are his artistic signature.
Las pinceladas únicas del artista son su sello artístico.
•
The chef's signature dish is a roasted duck with orange sauce.
El plato estrella del chef es un pato asado con salsa de naranja.