Symbol, Chemistry.
  1. nickel.

Other definitions for N.I. (2 of 2)


  1. Northern Ireland. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use Ni in a sentence

  • "M-a-c-a-r-o-n-i," said she, triumphantly, remembering her father's remark that there were no double letters in it.

    Marjorie's Busy Days | Carolyn Wells
  • The idea expressed in English by the sentence I came to give it to her is rendered in Chinook by i-n-i-a-l-u-d-am.

    Language | Edward Sapir
  • I remember it particularly, because it was spelled A-n-n-i-e instead of Anna.

    Bad Hugh | Mary Jane Holmes
  • Yes, most assuredly n-i-g-g-e-r is going to have a different meaning when this war ends.

    The Glory of The Coming | Irvin S. Cobb
  • Peace employed the phonetic method of pronouncing words, and to her young eyes u-n-i-o-n was easily onion.

    At the Little Brown House | Ruth Alberta Brown

British Dictionary definitions for ni (1 of 3)


the internet domain name for
  1. Nicaragua

British Dictionary definitions for Ni (2 of 3)


the chemical symbol for
  1. nickel

British Dictionary definitions for NI (3 of 3)


abbreviation for
  1. (in Britain) national insurance

  2. Northern Ireland

  1. NZ North Island

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for Ni


The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.