1

j

noun, often capitalized, often attributive \ ˈjā \

Definition of j

plural j's or js play \ˈjāz\
1 a : the 10th letter of the English alphabet
b : a speech counterpart of orthographic j (as j in jump)
2 a : a graphic device for reproducing the letter j
b : a unit vector parallel to the y-axis
3 : one designated j especially as the 10th in order or class
4 : something shaped like the letter J
5 J , plural J's or Js, basketball, informal : jump shot
  • … she flicked a pass to the corner, where Lawson nailed a J to tie the game at 51.
  • —Hank Hersch

Examples of j in a Sentence

  1. a word that begins with a j

  2. a word that begins with j

First Known Use of j

15th century

in the meaning defined at sense 1a

See Words from the same year
NEW! Time Traveler

Other Alphabet Terms


2

j

abbreviation

Definition of j

1 jack
2 journal
3 judge; justice

J

abbreviation

Definition of J

joule

J Defined for English Language Learners

j

Definition of j for English Language Learners

  • : the 10th letter of the English alphabet


J Defined for Kids

j

noun, often capitalized \ ˈjā \

Definition of j for Students

plural j's or js \ˈjāz\
: the tenth letter of the English alphabet

Medical Dictionary

J

symbol

medical Definition of J

mechanical equivalent of heat

Law Dictionary

J.

abbreviation

legal Definition of J.

1 judge
2 justice
3 judgment

Learn More about j


Seen and Heard

What made you want to look up j? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

changing quickly and often

Get Word of the Day daily email!

Test Your Vocabulary

Obscure Shapes

  • a-pile-of-three-dimensional-shapes-in-green
  • Something that is ooid is shaped like:
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!