couple vs part

couple

verb
  • To join (two things) together, or (one thing) to (another). 

  • To cause (two animals) to copulate, to bring (two animals) together for mating. 

  • To join in sexual intercourse; to copulate. 

adj
  • Two or (a) small number of. 

noun
  • A small number. 

  • That which joins or links two things together; a bond or tie; a coupler. 

  • A couple-close. 

  • Two partners in a romantic or sexual relationship. 

  • One of the pairs of plates of two metals which compose a voltaic battery, called a voltaic couple or galvanic couple. 

  • Two of the same kind connected or considered together. 

  • A turning effect created by forces that sum to zero in magnitude but produce a non-zero external torque. 

det
  • Two or a few, a small number of. 

part

verb
  • To be divided in two or separated; shed. 

  • To separate by a process of extraction, elimination, or secretion. 

  • To leave (an IRC channel). 

  • To cut hair with a parting; shed. 

  • To leave the company of. 

  • To divide in two. 

  • To separate or disunite; to remove from contact or contiguity; to sunder. 

adv
  • Partly; partially; fractionally. 

noun
  • A unit of relative proportion in a mixture. 

  • The melody played or sung by a particular instrument, voice, or group of instruments or voices, within a polyphonic piece. 

  • Share, especially of a profit. 

  • A section of a document. 

  • Duty; responsibility. 

  • Each of two contrasting sides of an argument, debate etc.; "hand". 

  • A group inside a larger group. 

  • In the Hebrew lunisolar calendar, a unit of time equivalent to 3⅓ seconds. 

  • The dividing line formed by combing the hair in different directions. 

  • A constituent of character or capacity; quality; faculty; talent; usually in the plural with a collective sense. 

  • A fraction of a whole. 

  • Position or role (especially in a play). 

  • A distinct element of something larger. 

  • 3.5 centiliters of one ingredient in a mixed drink. 

  • A section of land; an area of a country or other territory; region. 

  • A room in a public building, especially a courtroom. 

adj
  • Fractional; partial. 

How often have the words couple and part occurred in a corpus of books? (source: Google Ngram Viewer )