wait up

US /weɪt ʌp/
UK /weɪt ʌp/
"wait up" picture
1.

esperar, aguardar

to wait for someone or something to arrive or catch up

:
Hey, wait up! I need to tie my shoe.
¡Oye, espera! Necesito atarme el zapato.
Don't go ahead, wait up for me.
No te adelantes, espérame.
2.

quedarse despierto esperando, no acostarse

to stay awake, especially late at night, waiting for someone or something

:
I had to wait up for my brother to come home.
Tuve que quedarme despierto esperando que mi hermano llegara a casa.
Don't wait up for me, I might be late.
No me esperes despierto, podría llegar tarde.