English for Today by Ganiu Abisoye Bamgbose (Dr GAB)

OF and OFF

It’s pertinent for the general users of English to note that:
OF, which is used to express the relationship between a part and a whole, is pronounced with the /v/ sound, /ɒv/.
OFF, which means to be removed or separated, is pronounced with the /f/ sound, /ɒf/.
GAB