extend vs narrow

extend

verb
  • To straighten (a limb). 

  • To reenlist for a further period. 

  • To increase in quantity by weakening or adulterating additions. 

  • To value, as lands taken by a writ of extent in satisfaction of a debt; to assign by writ of extent. 

  • Of a class: to be an extension or subtype of, or to be based on, a prototype or a more abstract class. 

  • To increase in extent. 

  • To cause to increase in extent. 

  • To cause to last for a longer period of time. 

  • To possess a certain extent; to cover an amount of space. 

  • To bestow; to offer; to impart; to apply. 

narrow

verb
  • To get narrower. 

  • To contract the size of, as a stocking, by taking two stitches into one. 

  • To reduce in width or extent; to contract. 

  • To convert to a data type that cannot hold as many distinct values. 

  • To partially lower one's eyelids in a way usually taken to suggest a defensive, aggressive or penetrating look. 

adj
  • Formed (as a vowel) by a close position of some part of the tongue in relation to the palate; or (according to Bell) by a tense condition of the pharynx; distinguished from wide. 

  • Having a small margin or degree. 

  • Parsimonious; niggardly; covetous; selfish. 

  • Having a small width; not wide; having opposite edges or sides that are close, especially by comparison to length or depth. 

  • Restrictive; without flexibility or latitude. 

  • Of little extent; very limited; circumscribed. 

  • Scrutinizing in detail; close; accurate; exact. 

noun
  • A narrow passage, especially a contracted part of a stream, lake, or sea; a strait connecting two bodies of water. 

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