jumper
US /ˈdʒʌm.pɚ/
UK /ˈdʒʌm.pɚ/

1.
suéter, jersey
a piece of clothing, typically made of wool or cotton, that is worn on the upper part of the body and has sleeves, pulled on over the head
:
•
It's cold outside, so put on a warm jumper.
Hace frío afuera, así que ponte un suéter abrigado.
•
She knitted a beautiful blue jumper for her son.
Ella tejió un hermoso suéter azul para su hijo.
2.
saltador
a person or animal that jumps
:
•
The horse is a good jumper and cleared the fence easily.
El caballo es un buen saltador y saltó la valla fácilmente.
•
He's a skilled long jumper.
Es un hábil saltador de longitud.
3.
puente, cable de conexión
a short connecting wire with clips at each end, used for making temporary connections to electrical circuits
:
•
We used a jumper to bypass the faulty switch.
Usamos un puente para sortear el interruptor defectuoso.
•
The technician connected the two points with a small jumper.
El técnico conectó los dos puntos con un pequeño puente.