Dictionary.com
Thesaurus.com
Jump To:
  • Ca
    Ca
    calcium.
  • CA
    CA
    abbreviation
    California (approved especially for use with zip code).
  • ca'
    ca'
    verb (used with or without object)
    to call, as to call an animal toward one; urge forward by calling.
  • ca-
    ca-
    variant of ker-.
  • ca.
    ca.
    abbreviation
    cathode.
  • C/A
    C/A
    capital account.
  • C.A.
    C.A.
    abbreviation
    Central America.
  • ca
    ca
    abbreviation
    Canada
Synonyms

Ca

1 American  
Symbol, Chemistry.
  1. calcium.


CA 2 American  

abbreviation

  1. California (approved especially for use with zip code).

  2. chronological age.


ca' 3 American  
[kah, kaw] / kɑ, kɔ /

verb (used with or without object)

Scot.
  1. to call, as to call an animal toward one; urge forward by calling.


ca- 4 American  
  1. variant of ker-.


ca. 5 American  

abbreviation

  1. cathode.

  2. centiare.

  3. Also ca (with a year) about.

    ca. 476 b.c.


C/A 6 American  
Or c/a
  1. capital account.

  2. cash account.

  3. credit account.

  4. current account.


C.A. 7 American  

abbreviation

  1. Central America.

  2. chartered accountant.

  3. Accounting. chief accountant.

  4. Coast Artillery.

  5. commercial agent.

  6. consular agent.

  7. controller of accounts.

  8. current assets.


CA 1 British  

abbreviation

  1. California

  2. Central America

  3. chartered accountant

  4. chief accountant

  5. consular agent

  6. (in Britain) Consumers' Association

"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

C/A 2 British  

abbreviation

  1. capital account

  2. credit account

  3. current account

"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

Ca 3 British  

symbol

  1. calcium

"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

ca 4 British  

abbreviation

  1. Canada

"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

ca. 5 British  

abbreviation

  1. circa

"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

Etymology

Origin of ca'3

Variant of call

Origin of ca.5

ca. ( def. 3 ) < Latin circā

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Using specially designed nucleic acid probes, the team produced microscopic images showing intron RNA in living cells of Ca.

From Science Daily Aug. 5, 2026

He recalled when he was 15, growing up in the Vietnamese city of Ca Mau, he overheard his father’s friend ask for a loan to buy a car.

From Los Angeles Times Jul. 10, 2026

Cardinal Luis Antonio Tagle presided as papal envoy over a special mass in a church in Ca Mau for Father Francis Xavier Truong Buu Diep, a priest killed while protecting parishioners in 1946.

From Barron's Jul. 2, 2026

She was treated on the slope for a lengthy period before being airlifted off the piste to Ca Foncello hospital in Treviso, where she underwent surgery on a fractured left leg.

From BBC Feb. 9, 2026

Ox tu kal, three to the score, 23, and so on up to Ca kal, two score, 40.

From The Maya Chronicles Brinton's Library Of Aboriginal American Literature, Number 1 by Daniel Garrison Brinton

The study appears in CA: A Cancer Journal for Clinicians, the flagship journal of ACS, and is also available on cancer.org.

From Science Daily Sep. 7, 2026

In an April 29 press release, Markon Cooperative, a farm-to-table produce cooperative, noted that cauliflower supplies from the Salinas Valley and Santa Maria, CA, are extremely limited.

From Salon May 27, 2026

He noted in a recent interview with StatNews published last week that his CA 19-9 levels—a common blood marker of pancreatic cancer—had plunged from north of 8,000 to about 374.

From The Wall Street Journal Apr. 19, 2026

The company was founded by Jack Patrick Dorsey and James Morgan McKelvey in February 2009 and is headquartered in Oakland, CA.

From MarketWatch Feb. 27, 2026

Then I took the envelope from my dresser, postmarked Oakland, CA.

From "P.S. Be Eleven" by Rita Williams-Garcia

The gudewife, she kent how I felt, and when the Lord took her hame the hills seemed to ca' more and more on me.

From The Bushranger's Secret by Mrs. Henry Clarke

"And whare's the bairns o' this house, That ca' me Lamkin?"

From English and Scottish Ballads (volume 3 of 8) by Various

It’s a rank stranger—a quare-lookin’ callant, wi’ big beard, and them sort o’ whiskers they ca’ moostachoes.

From The Child Wife by Mayne Reid

It’s hers while she’s in it, and so it’s yours, to say nothing o’ George there, who surely is your friend and brother, whatever ye may ca’ me.”

From The Twa Miss Dawsons by Margaret M. (Margaret Murray) Robertson

And whan ye come to Benachie, Ye'll neither chap nor ca'; Sae well's ye'll ken auld Johnny there,55 Three feet abeen them a'.

From English and Scottish Ballads, Volume IV by Various

She wants me to be indebted to her for my education, for my ca- reer, for my house.

From "The Queen of Water" by Laura Resau

The Wolfe deuoureth and ea- teth of his praie all in feare, and therefore oftentymes he ca- steth his looke, to be safe from perill and daunger.

From A booke called the Foundacion of Rhetorike because all other partes of Rhetorike are grounded thereupon, euery parte sette forthe in an Oracion vpon questions, verie profitable to bee knowen and redde by Richard Rainolde

It is the illumination of 85:3 the spiritual understanding which demonstrates the ca-         pacity of Soul, not of material sense.

From Science and Health, with Key to the Scriptures by Mary Baker Eddy

Root grow thou long-er heart be thou strong-er; Let the sun bless me, soft-ly ca- ress me; Let rain-drops pat-ter, wind, my leaves scat-ter.

From The Story Hour by Nora Archibald Smith

The human genome contains ca. 20,000 genes that are used for the construction of proteins.

From Science Daily Dec. 8, 2023

Described as “Garcia’s personal briefcase, with handwritten lyrics, drawings, letters, and ephemera, ca. 1977-1979,” the assorted paperwork offers a look at the musician’s daily life on the road.

From Los Angeles Times Oct. 7, 2021

In the 5th and 4th century the number of "eligible voters" was perhaps not higher than 10% out of a population of ca. 250,000.

From Economist Nov. 27, 2012

Part of the challenge was to create an interactive version of a city--in this case, Yokosuka, Japan, ca. 1986--in which you can knock on virtually every door on every street.

From Time Magazine Archive

While this was going on the Chief had procured a ca. sa against John McIntyre and his son Peter.

From The Last Laird of MacNab An Episode in the Settlement of MacNab Township, Upper Canada by Various

Norma Buster is the chief of staff at C.A.

From Salon Aug. 17, 2026

A friend of Williams, identified only as C.A., recounted that Henley arrived at the Airbnb about 2 a.m. on Jan. 24.

From Los Angeles Times Mar. 19, 2025

Carry hired C.A. to design several of National Capital Brewing Co.'s pubs as well a number of buildings on Capitol Hill.

From Washington Post Sep. 23, 2022

The practice of sending reporters out as a “one-man band” is not new, but it is more widespread today, said C.A.

From Seattle Times Jan. 20, 2022

After 1883 Bratianu acted as sole leader of the Liberals, owing to a quarrel with C.A.

From Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4 "Bradford, William" to "Brequigny, Louis" by Various

For Mr. McWilliams, next to nothing is irrelevant to the story of man and money, including the first bicycle craze, ca.

From The Wall Street Journal Dec. 12, 2025

They recorded substantially higher levels of pollutants in the kitchen for well over an hour after the food had been cooked despite the cooking process only taking ca.

From Science Daily Nov. 26, 2024

But instead of giving her a ticket, he cleaned off her ca, she said.

From Seattle Times Mar. 16, 2023

Dishes including this one, vit ca ri, make chowhounds hopeful.

From Washington Post Jan. 6, 2023

“I — live — at — seven — twenty — eight — Sy — ca — more. I — do.”

From "Maniac Magee" by Jerry Spinelli

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training