to become, get, to put on, to get going, set off
Yo pienso que la abuela de Tom es demasiado vieja para ponerse minifalda.
I think Tom's grandmother is too old to wear a miniskirt.
And a desire to test themselves.
— Harry Potter y la piedra filosofal (2001)
El nuevo teléfono se agotó nada más ponerse a la venta.
The new phone sold out as soon as it went on sale.
Es usted la que debería detenerse, y no ponerse nerviosa.
You are the one who should stop, and not get nervous.
— Las diabólicas (1955)
Las cosas están a punto de ponerse feas.
Things are about to get ugly.