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BNC: 5488 COCA: 6714

alpha
1 alpha /ˈælfə/ noun
plural alphas
1 alpha
/ˈælfə/
noun
plural alphas
Learner's definition of ALPHA
[count]
: the first letter of the Greek alphabet — Α or α希腊字母表的第1个字母
2 alpha /ˈælfə/ adjective
2 alpha
/ˈælfə/
adjective
Learner's definition of ALPHA
always used before a noun
1 
: having the most power in a group of animals or people（兽群或人群中）最有权势的
2 
— used to describe the first version of a product that is being developed and tested（产品）初版的，雏形的
— compare beta
BNC: 5488 COCA: 6714

alpha

1 of 2

noun

al·​pha ˈal-fə How to pronounce alpha (audio)
plural alphas
1
: the 1st letter of the Greek alphabet see Alphabet Table
2
a
: something that is first : beginning compare omega see also alpha and omega
b
: something or someone designated with the name alpha or the Greek letter α especially denoting the first in position, order, or class
3
: alpha wave
4
: alpha particle
5
: the first version of a product (such as a computer program) that is being developed and tested
—usually used before another noun
alpha versionsalpha testing
also : a stage of product development in which alpha prototypes are released
a product that is available in alpha
compare beta
6
: a socially dominant person or animal
Mike is the ringleader, the alpha of the group. Tom is his wingman … Jason Blake
[Kamala] Harris came with a clear plan, was well prepared, and executed perfectly. The fact that she was willing to take on Biden, the front-runner, signaled that she was the alpha on the stage. Philip Klein
The rest of the animals hold positions in the pecking order below the alphas and respect their leadership roles, although they may challenge other wolves (even alphas) to raise their rank. C. C. Holland

alpha

2 of 2

adjective

1
: closest in the structure of an organic molecule to a particular group or atom
—symbol α
α-substitution
2
: socially dominant especially in a group of animals
an alpha male
3
: alphabetic

Synonyms

Noun

Example Sentences

Noun money is not the alpha and omega—the beginning and end—of life's purpose
Recent Examples on the Web
Adjective
As far as official Telltale games go, the company's upcoming narrative adventure, The Expanse: A Telltale Series, was announced with a summer 2023 launch window, along with a peek at pre-alpha gameplay. Sam Machkovech, Ars Technica, 23 Aug. 2022 Definitely not the style of my alpha husband, who would enter purposefully with supplies or advice: That’s not the right tool. Amy Doyle, New York Times, 13 Mar. 2020 Bryant and O’Neal had an inevitable falling-out: not even L.A.’s sprawl could contain those two alpha egos. Sean Gregory, Time, 30 Jan. 2020 Most have stood apart from their football-playing peers for years, and their alpha personalities often make for an interesting mix in the locker room. Dave Birkett, Detroit Free Press, 18 Oct. 2019 The new game will likely arrive sometime next year, and is now in alpha testing. Eric Adams, Wired, 15 Dec. 2019

Word History

Etymology

Noun

Middle English, from Latin, from Greek, of Semitic origin; akin to Hebrew āleph aleph

Adjective

(sense 2) from attributive use of alpha entry 1; (sense 3) by shortening

First Known Use

Noun

12th century, in the meaning defined at sense 1

Adjective

1842, in the meaning defined at sense 1

Time Traveler
The first known use of alpha was in the 12th century

Phrases Containing alpha

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BNC: 5488 COCA: 6714

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