alpha
- 01 B2 Upper Intermediate
n.the first letter of the Greek alphabet (A, α).
n.the name of the first letter of the Greek alphabet, often used symbolically to represent the beginning of a sequence.
Simple“The professor explained that alpha is the first letter in the Greek system.”
In context“In classical studies, the transition from alpha to omega is frequently used as a metaphor for the entirety of a process or lifespan.”
- 02 B2 Upper Intermediate
n.an early version of a computer program that is still being tested.
n.an early, internally tested version of a software product, preceding the beta stage and typically containing significant bugs.
Simple“The game is currently in alpha, so players should expect some technical problems.”
In context“During the alpha phase, the development team focused on core mechanics rather than refining the user interface or fixing minor graphical glitches.”
- 03 B2 Upper Intermediate
n.a person who is the leader or the most powerful in a group.
n.the highest-ranking or most dominant individual in a social hierarchy.
Simple“He always tries to be the alpha in every meeting by talking over others.”
In context“Sociologists often debate whether the concept of an alpha truly applies to human corporate structures or if it is a misapplied biological metaphor.”
- 04 C1 Advanced
n.the extra money an investment makes compared to the market average.
n.the excess return of an investment relative to the return of a benchmark index.
Simple“The fund manager was praised for consistently generating alpha in a flat market.”
In context“Active investors seek to achieve alpha through superior stock selection, whereas passive investors are content with matching the market's beta.”
Synonymsexcess return - 05 C1 Advanced
n.the level of risk a scientist accepts for being wrong in a test.
n.the probability of committing a type I error in a statistical hypothesis test.
Simple“We set the alpha at 0.05 to ensure the results were statistically significant.”
In context“Lowering the alpha level reduces the risk of a false positive but simultaneously increases the likelihood of failing to detect a real effect.”
Synonymssignificance level - 06 B2 Upper Intermediate
n.a person born between the early 2010s and the mid-2020s.
n.a member of the demographic cohort succeeding Generation Z, typically born from 2010 onwards.
Simple“My youngest nephew is an alpha and has used a tablet since he was a toddler.”
In context“Marketers are already studying the digital habits of Generation Alpha, noting their unprecedented integration with artificial intelligence from early childhood.”
- 07 B2 Upper Intermediate
adj.describing the most powerful person or the first thing in a list.
adj.denoting the first in a sequence or the most dominant in a social or biological hierarchy.
Simple“The alpha male in the wolf pack leads the hunt.”
In context“The alpha version of the hardware was bulky and inefficient, bearing little resemblance to the sleek consumer product released two years later.”
Antonyms