Main definitions of j in US English:

: j1J2J3

j1

"j"
  • (in electrical engineering and electronics) the imaginary quantity equal to the square root of minus one.

    Compare with i

Pronunciation

j

/jā/

Main definitions of j in US English:

: j1J2J3

J2

(also j)

noun

  • 1The tenth letter of the alphabet.

    1. 1.1 Denoting the next after I (or H if I is omitted) in a set of items, categories, etc.
  • 2"J"A shape like that of a capital J.

  • 3archaic Used instead of I as the Roman numeral for one in final position.

    ‘between ij and iij of the clock’

Pronunciation

J

/jā//dʒeɪ/

Main definitions of j in US English:

: j1J2J3

J3

abbreviation

  • 1Jack (used in describing play in card games).

  • 2Physics
    Joule(s).

  • 3(in titles) Journal (of)

    ‘J. Biol. Chem’
  • 4Judge.

  • 5Justice.

Pronunciation

J

/dʒeɪ//jā/