ingredient

(noun) a component of a mixture or compound.

(noun) an abstract part of something. Synonyms: component, constituent, element, factor. Examples: "Jealousy was a component of his character." "Two constituents of a musical composition are melody and harmony." "The grammatical elements of a sentence." "A key factor in her success." "Humor: an effective ingredient of a speech."

(noun) food that is a component of a mixture in cooking. Synonyms: fixings. Example: "The recipe lists all the fixings for a salad."