expression

A2 · Elementary Countable noun

n. the look on your face that shows what you are thinking or feeling.

n. a facial appearance that conveys a specific emotion or state of mind.

“He had a confused expression on his face when I told him the news.”

“She maintained a neutral expression throughout the cross-examination, refusing to let the jury see her growing anxiety.”

A2 · Elementary Countable noun

n. a word or group of words with a particular meaning.

n. a particular word, phrase, or form of words, often idiomatic or colloquial.

“Break a leg is a common expression used to wish someone good luck.”

“The professor explained that the expression was a regionalism rarely heard outside of the rural southwest.”

B2 · Upper Intermediate Countable noun Mathematics Technical

n. a group of numbers and symbols that show a value.

n. a finite combination of symbols that is well-formed according to rules that depend on the context.

“The teacher asked us to simplify the algebraic expression in the brackets.”

“The software struggled to parse the complex mathematical expression due to a missing closing parenthesis in the third line of code.”

C1 · Advanced Countable noun Computing Technical

n. a piece of code that gives a specific result or value.

n. a syntactic unit in a programming language that can be evaluated to determine its value.

Español:expresión

“This regular expression helps the computer find email addresses in a long text.”

“The compiler evaluates the boolean expression before deciding which branch of the conditional logic to execute.”

C1 · Advanced Uncountable noun Science Technical

n. the way a gene starts working to produce a physical effect.

n. the process by which information from a gene is used in the synthesis of a functional gene product.

“Scientists are studying the gene expression that causes certain flowers to change colour.”

“Abnormal gene expression in the early stages of development can lead to significant structural defects in the organism.”

B2 · Upper Intermediate Uncountable noun Music

n. the way a musician plays to show emotion and style.

n. the quality of playing or singing with sensitive and appropriate emotion.

“She played the piano piece with great expression and moved the audience to tears.”

“The conductor urged the violinists to play with more expression during the melancholic second movement.”