Ingredient
Part of speech: noun
Definition: One of the substances present in a mixture.
Example sentence: I have a concept of Naples that is not so much of a city, per se, but rather an ingredient of the human spirit that I detect in everyone, Neapolitan or not. The idea that 'Neapolitanism' and mass ignorance are somehow indissolubly linked is one that I am prepared to fight with all the strength I have.
Factor
Part of speech: verb
Definition: To find all the factors of (a number or other mathematical object) (the objects that divide it evenly).To be a product of other objects.
Part of speech: noun
Definition: A doer, maker; a person who does things for another person or organizationAn integral partAny of various objects multiplied together to form some wholeInfluence; a phenomenon that affects the nature, the magnitude, and/or the timing of a consequence
Example sentence: I believe in hard work, not luck factor. The best efforts will reap the best fruits. Nobody can take all the credit. We don't even talk about the efforts of the director, the writers, other technicians, etc. They all together take a film to another level.