0 to move your head up and down as a way of agreeing -- fare cenno col capo
1 to make a quick forward and downward movement of the head to show agreement, as a greeting etc -- (fare un cenno col capo)
2 to let the head fall forward and downward when sleepy -- sonnecchiare
Grandmother sat nodding by the fire.
3 a nodding movement of the head -- (cenno del capo)
He answered with a nod.
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Possiamo completarlo passo dopo passo, indipendentemente dalla lunghezza della strada, e non può essere completato, per quanto breve sia la strada, se non segni nemmeno la tua impronta.