kʌmˈpoʊnənt kənˈstɪtjuənt ˈɛlɪmənt ˈfæktə ˈfæktɚ ɪnˈɡɹiːdi.ənt pɑːt pɑɹt pɐːt ˈpɔɹʃən ˈpɔːʃən an artifact that is one of the individual parts of which a composite entity is made up; especially a part that can be separated from or attached to a system spare components for cars a component or constituent element of a system an abstract part of something 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 something determined in relation to something that includes it he wanted to feel a part of something bigger than himself I read a portion of the manuscript the smaller component is hard to reach the animal constituent of plankton