a component or constituent element of a system.
a key factor in her success.
he wanted to feel a part of something bigger than himself.
humor: an effective ingredient of a speech.
I read a portion of the manuscript.
jealousy was a component of his character.
spare components for cars.
the animal constituent of plankton.
the grammatical elements of a sentence.
the smaller component is hard to reach.
two constituents of a musical composition are melody and harmony.