plural of part
"The tutor spent extra time helping the student improve his mental parts so he could keep up in advanced math classes."
Intellectual ability or learning.
In plain English: Parts are the separate pieces that make up a whole thing.
"The car needs new parts to fix the engine."
Usage: The word "parts" does not mean intellectual ability or learning; that definition belongs to the archaic term "parts," which is rarely used today. In modern English, "parts" refers to physical components of a whole or roles played in a performance. Use it only when describing tangible pieces or acting roles, never as a synonym for intelligence.
Third-person singular simple present indicative form of part
"She parts her hair to reveal a small tattoo behind her ear."
In plain English: To part means to separate or divide something into different pieces.
"The old machine parts down easily when you take off the cover."
Usage: Use "parts" as a verb only when describing something that separates or divides into pieces, such as clouds parting to reveal the sun. Do not use it as a synonym for "leave," which is the more common everyday meaning of the phrase "part ways."
Parts comes from Old French part, derived from Latin pars meaning "a share" or "division." It originally referred to a portion of something divided into distinct sections.