acknowledge
US /əkˈnɑː.lɪdʒ/
UK /əkˈnɑː.lɪdʒ/

1.
2.
riconoscere, salutare
show that one has noticed or recognized (someone or something) by an act, gesture, or remark
:
•
He didn't even acknowledge my presence.
Non ha nemmeno riconosciuto la mia presenza.
•
The driver acknowledged the pedestrian with a nod.
L'autista ha riconosciuto il pedone con un cenno del capo.