what is the shortest meaning of "moment", "torque" 'coeeficient'' and "modulus" ?

Answer 1

moment and torque are the same. They are expressed as force * distance and produce rotation. Typically, the term moment is used in engineering problems, and torque is a lay term.

Coeeficient is just that, typically some constant value.

Modulus (of elasticity) is typically a material property which indicates how much strain a material experience to a given stress.

Answer 2

moment = didtance to center of rotation.
torque = Force * Moment
coefficient = a multiplier of a variable
modulus = many possibilities 'Google define:modulus'