NOT ALL [C, U] › one of the things that, with other things, makes the whole of something: Part of this form seems to be missing. That's only part of the problem. I did French as part of my degree course. It's all part of growing up. You're part of the family.
take part (in sth) › to be involved in an activity with other people: She doesn't usually take part in any of the class activities.
FILM/PLAY [C] › a person in a film or play: He writes good parts for women. He plays the part of the father.
have/play a part in sth › to be one of the people or things that are involved in an event or situation: Did you have any part in this production? Alcohol plays a part in 60 percent of violent crime.
MACHINE [C] › a piece of a machine or vehicle: aircraft parts spare parts HAIR [C] US (UK parting) › the line on your head made by brushing your hair in two different directions
the best/better part of sth › most of a period of time: It took the better part of the afternoon to put those shelves up.
in part formal › partly: He is in part to blame for the accident.
for the most part › mostly or usually: I enjoyed it for the most part.