In politics: triumvirate, troika
Triple;or in a kid situation triplets
the three main groups are that you gey(:
three groups of amphibian
The three main groups in science are chemistry,biology and physics.
To narrow it down to three groups, it would be strings, winds, and percussion.
Three groups of cnidarians are 1. nematocyst 2. cnidocytes 3. gastrozooids
The three groups of Orca are Transient, Resident and Offshore. See link below..
Three groups of seedless vascular plants: Ferns, Mosses, Liverworts.
One thing that comes in groups of three is the 3 little pigs. The Holy Trinity is a group of three as is the primary colors.
The three groups are bizarre delusions, hallucinations, and a disordered or incoherent thought pattern
Scottish, British (not Scottish), and Polish are the top three ethnic groups in Scotland.
You can make three different groups of three out of nine. 9/3=3
Religious groups, advocacy groups, and the media.