fruit
The Italian word for fruit is 'frutta'. It follows the same usage as in English, referring to the mature ovary of a flowering plant, typically sweet or sour, and can be eaten raw or used in cooking.
The fruit is sweet.
In this sentence, 'La frutta' is the subject referring to 'The fruit', 'è' is a verb which means 'is', and 'dolce' is an adjective which means 'sweet'.
I like fruit.
In this sentence, 'Mi piace' is a phrase which means 'I like', and 'la frutta' is a noun phrase that means 'the fruit'.