alpha
/'ælfə/
Học thuậtThân thiện
Definition
Noun:
- The first letter of the Greek alphabet (Α, α): It is the initial letter in the Greek writing system.
- The beginning or first in a series: Used to denote the first or primary item in a set or sequence.
- The brightest or main star in a constellation: In astronomy, the designation for the most prominent star in a constellation.
- A measure of investment performance: In finance, a term for excess returns on an investment relative to a benchmark.
Adjective:
- First in order of importance or dominance: Describing the leading or most dominant individual in a group, especially in social animals.
- Denoting an early, experimental version: Used in software and hardware development to indicate a preliminary, testing-stage product.
Examples of Usage
Noun:
- The word "alphabet" is derived from the first two Greek letters, alpha and beta.
- Sirius is the alpha star of the constellation Canis Major.
- In the investment portfolio, the fund manager seeks to generate alpha.
Adjective:
- The alpha wolf leads the pack.
- The software is still in its alpha phase and has many bugs.
Advanced Usage
"Alpha and Omega": A phrase meaning the beginning and the end, derived from the Book of Revelation in the Bible, used to signify completeness or eternal nature.
- For many, family is the alpha and omega of their existence.
"Alpha male/female": A sociological and biological term for the dominant individual in a group.
- In many primate societies, the alpha male has priority access to resources.
"Alpha version": In technology, a very early, often unstable version of software released for internal or limited external testing.
- Developers are debugging the alpha version before creating a beta release.
Variants and Related Words
- Alphabet (n): A set of letters or symbols in a fixed order, derived from the first two Greek letters, alpha and beta.
- Alphanumeric (adj): Consisting of or using both letters (alphabetic characters) and numerals.
Synonyms
- First: Being before all others in time, order, or importance.
- Primary: Of chief importance; principal.
- Dominant: Most important, powerful, or influential.
- Preliminary: Denoting an action or event preceding or done in preparation for something fuller or more important.
Related Phrases
Alpha test (n): The first phase of operational testing for new software, typically conducted internally.
- The team is conducting an alpha test to find critical flaws.
Alpha particle (n): A type of ionizing radiation consisting of two protons and two neutrons, emitted by some radioactive substances.
- Alpha particles have low penetration power and can be stopped by a sheet of paper.
Related Idioms
- Alpha plus: (Informal) Of the highest quality or standard; excellent.
- Her performance in the exam was alpha plus.
Adjective
- early testing stage of a software or hardware product
- alpha version
- first in order of importance
- the alpha male in the group of chimpanzees
- the alpha star in a constellation is the brightest or main star
Noun
- the beginning of a series or sequence
- the Alpha and Omega, the first and the last, the beginning and the end--Revelations
- the 1st letter of the Greek alphabet