parcel vs tract

parcel

noun
  • An indiscriminate or indefinite number, measure, or quantity; a collection; a group. 

  • An individual item appearing on an invoice or receipt (only in the phrase bill of parcels). 

  • A package wrapped for shipment. 

  • An individual consignment of cargo for shipment, regardless of size and form. 

  • A small amount of food that has been wrapped up, for example a pastry. 

  • A portion of anything taken separately; a fragment of a whole; a part. 

  • A division of land bought and sold as a unit. 

verb
  • To divide and distribute by parts or portions; often with out or into. 

  • To wrap a strip around the end of a rope. 

  • To wrap something up into the form of a package. 

  • To add a parcel or item to; to itemize. 

tract

noun
  • Continued or protracted duration, length, extent 

  • Part of the proper of the liturgical celebration of the Eucharist for many Christian denominations, used instead of the alleluia during Lenten or pre-Lenten seasons, in a Requiem Mass, and on a few other penitential occasions. 

  • A series of connected body organs, such as the digestive tract. 

  • A commentator's view or perspective on a subject. 

  • A brief treatise or discourse on a subject. 

  • An area or expanse. 

  • A small booklet such as a pamphlet, often for promotional or informational uses. 

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