How do you say my uncles wife in marathi?

In Marathi, "my uncle's wife" is said as "माझ्या काकू" (Mazhya Kakoo) if referring to the wife's husband as "काका" (Kaka), which typically means paternal uncle. If it's a maternal uncle, you would use "माझ्या मावशी" (Mazhya Mavashi) for "aunt."