Sub
Under
Sym
With or together
Tri
Three
Un
Not
Archy
Government
Submarine
A warship or other vessel capable of remaining underwater for extended periods.
Submerge
To completely cover or put something entirely under water or another liquid.
Symphony
A long musical composition typically divided into several movements with musicians playing together.
Symmetry
When an object is made up of two parts that are exactly the same and face each other, like a mirror image.
Tricycle
A light vehicle that is similar to a bicycle but has three wheels instead of two.
Triceratops
A large, plant-eating dinosaur known for its three horns and bony neck frill.
Uninvited
Arrive somewhere without having been formally asked or requested to attend.
Uncharted
Not recorded or located on a map; unknown or unexplored.
Monarchy
It is a system of government where a country is ruled by a king, queen, or emperor.
Hierarchy
A system in which people or things are ranked one above the other according to status or authority.