catalyst — You can describe a person or thing that causes a change or event to happen as a catalyst.
incentive — something that incites or tends to incite to action or greater effort, as a reward offered for increased productivity.
assistance — If you give someone assistance, you help them do a job or task by doing part of the work for them.
accelerator — The accelerator in a car or other vehicle is the pedal which you press with your foot in order to make the vehicle go faster.
help — to give or provide what is necessary to accomplish a task or satisfy a need; contribute strength or means to; render assistance to; cooperate effectively with; aid; assist: He planned to help me with my work. Let me help you with those packages.
denial — A denial of something is a statement that it is not true, does not exist, or did not happen.
concealment — Concealment is the state of being hidden or the act of hiding something.
contradiction — If you describe an aspect of a situation as a contradiction, you mean that it is completely different from other aspects, and so makes the situation confused or difficult to understand.
hiding — the pelt or skin of one of the larger animals (cow, horse, buffalo, etc.), raw or dressed.
