JA

abbreviation

1
joint account
2
judge advocate

Browse Nearby Words

j'y suis, j'y reste
JA
jaal goat
See all Nearby Words

Cite this Entry

“JA.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/JA. Accessed 14 Feb. 2026.

Copy Citation

Legal Definition

JA

abbreviation
judge advocate
Love words? Need even more definitions?

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

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of canoodle

See Definitions and Examples »

Popular in Grammar & Usage

See More

More Words You Always Have to Look Up

'Buck naked' or 'butt naked'?

What does 'etcetera' mean?

The Difference Between 'i.e.' and 'e.g.'

What’s the difference between ‘cemetery’ and ‘graveyard’?
See More

Popular in Wordplay

See More

16 Glee-ridden Words from Schitt's Creek

Did Orange the Fruit or the Color Come First?

Why Is the Letter ‘Z’ Associated With Sleeping?

The Words of the Week - Feb. 13

Why do we call it 'ides of March'?
See More

Popular

See More

More Words You Always Have to Look Up

16 Glee-ridden Words from Schitt's Creek

Did Orange the Fruit or the Color Come First?
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
burrowing owl athene cunicularia tilts its head outside its burrow on marco island florida
Guess the Curious Origins of These Everyday Words Oh, that’s where that comes from…
See All