Clever wordplay ("zip" + "city") with positive connotations that could suit many uses. For instance, a company that manufactures and designs zips.
Also, a commuter app, that helps people move around a city quickly. It could suit a company that created a travel app (i.e. something helping people understand and navigate a city).
The name "zipacity" has eight characters and four syllables. Four syllable names are used by established brands like Airbnb, Unilever and Panasonic.
This domain was first registered in April 2013. Older domains have an advantage when ranking in search engines.
Zipacity.com is a .com domain. Dot com domains are the most valued top-level-domain in the world, famously used by websites like youtube.com. Once you own a .com, it will be much easier to rank for your own name in Google.