Define static friction.
Static Friction is one of the two types of friction. The other being kinetic/dynamic friction.
Static friction is the force of friction that is trying to oppose the movement of a STATIONARY object. It is determined by the coefficient of static friction and the normal reaction force between the 2 surfaces in contact.
Static friction between the two surfaces in contact when are at “relative” state of rest to prevent relative motion between the two.
It does not mean, it opposes motion of any body. It just stops relative slidding of the two surfaces in contact, and as a result, it sometimes helps in moving, example being walking or car driving.
The static frictional force is generally stronger than the kinetic frictional force because of the body’s inertia of rest. For analogy, it is usually easier to increase the speed of a heavy moving box than to start moving the box altogether.