This is the 151st most frequent Italian word.
ha
"Ha" means "has" (third person singular of the verb "avere" - to have).
The word 'ha' is the third-person singular present indicative form of the verb 'avere,' which means 'to have.' It indicates possession in this context.
Lui ha un nuovo libro.
He has a new book.
Here, 'ha' is used as an auxiliary verb in the passato prossimo tense, coupled with the past participle 'detto' (said).
Ha detto di essere stanco.
He said he is tired.
In this example, 'ha' is again the verb 'avere,' describing a characteristic of the house.