join up
US /dʒɔɪn ʌp/
UK /dʒɔɪn ʌp/
1.
unirse, afiliarse
to become a member of an organization, club, or group
:
•
He decided to join up with the local environmental group.
Decidió unirse al grupo ecologista local.
•
Many young people join up for various social causes.
Muchos jóvenes se unen por diversas causas sociales.
2.
alistarse, ingresar al ejército
to join the armed forces
:
•
He decided to join up right after high school.
Decidió alistarse justo después de la escuela secundaria.
•
Many young men were encouraged to join up during the war.
Se animó a muchos jóvenes a alistarse durante la guerra.