Extry is a slang term that refers to something extra or additional. There are many synonyms for extry, and some of them include surplus, additional, supplementary, extra, more, spare, excess, superfluous, and leftover. These words all convey a sense of something being in addition to what is already present, whether it's more resources, additional time, or surplus supplies. The use of these words depends on the context of the situation, but they all have the same essence of something that is beyond the necessary or regular. Whether it's an extry topping on a pizza or an extry hour at work, having synonyms for this slang phrase can come in handy in a variety of situations.