What is a group of tigers called?
A group of several tigers is called a streak or an ambush. A female tigress and her cubs qualify as a streak. Tigers in captivity, forced to dwell together due to their habitat's size restrictions, are also called a streak.
Tigers are usually described as solitary animals, but they are not asocial. They communicate with each other using a special system of sounds, scratches ans even scents. For example, just like your house cats, they mark their territory by urine. Each tiger viciously defends its territory.