An example of firm is a law office.
Despite being hit by the car, the post was still firm.
A firm voice.
A firm ally.
A firm grasp.
A firm bargain; a firm offer.
Stock prices are still firm.
An example of firm is a sturdy piece of wood.
An example of firm is to shape clay into a mold.
A firm friendship.
A firm command.
A firm contract, a firm order.