let on
US /lɛt ɑn/
UK /lɛt ɑn/
1.
revelar, delatar
to reveal a secret or information
:
•
Don't let on that you know about the surprise party.
No reveles que sabes lo de la fiesta sorpresa.
•
She tried not to let on how upset she was.
Intentó no revelar lo molesta que estaba.