Looking up...
fire
Il fuoco è acceso.
The fire is lit.
Il fuoco sta bruciando.
The fire is burning.
passion, enthusiasm
Ha un grande fuoco dentro di sé.
He has a great fire within him.
The 'u' in 'fuoco' is pronounced like 'oo' in 'boot'.
From Latin 'focus', meaning 'hearth' or 'fireplace'.
Be careful with figurative uses, as 'fuoco' can imply passion or enthusiasm.