accurate, portable, symbolized, mechanism, semicircle, unique, invention, determine, frequently, indicate, protection, thriving

​correct and true in every detail

A small type of machine that is easy to carry

A set of moving parts of a machine

half a circle

a thing that has been produced or designed, it has not existed before

to make a firm decision to do something

the act of keeping something or someone not harmed, injured or damaged

often happens

to become and continue to be successful

rare / one in a million ​