English Reference

Word

del

Phoneticsdel

/ˈdɛɫ/

Definitions

01mathematical symbol

C1 · Math

n. a triangle symbol used in math to show how something changes in space.

n. the symbol ∇, representing the gradient operator in vector calculus.

“The professor wrote the del symbol on the board to start the calculus problem.”

“In vector calculus, the del operator is applied to a scalar field to derive the gradient vector at any given point.”

Technical

Usage

Often referred to as 'nabla' in technical contexts.

Synonyms

nabla

02keyboard key

B1 · Computing

n. a short name for the 'Delete' key on a computer keyboard.

n. a common abbreviation for the 'Delete' key, used to remove characters or files.

“Press the del key to remove the unwanted text from your document.”

“The user was instructed to hold down the control, alt, and del keys simultaneously to restart the frozen system.”

Usage

Usually written as 'Del' on physical hardware.

Synonyms

03a representative

C1

n. a short way to write the word 'delegate'.

n. a written abbreviation for 'delegate', typically used in administrative or political contexts.

“The list showed each del and the country they represented at the meeting.”

“The conference registration form required each del to provide their institutional affiliation and contact details.”

Formal

Usage

Primarily used in written lists or formal schedules.

Synonyms

04to remove

C1 · Computing

v. a short way to say 'delete' in computer programming.

v. an abbreviation for 'delete', frequently used as a command or keyword in programming languages.

“You can use the del command to clear the old data from the list.”

“In Python, the del statement is used to remove an item from a list or delete a variable entirely from memory.”

Technical

Usage

Commonly used as a reserved keyword in various coding syntaxes.

Synonyms

Antonyms

05constellation

C2 · Science

n. a short name for the constellation called Delphinus.

n. the standard astronomical abbreviation for the constellation Delphinus.

“The star chart marked the small constellation as Del.”

“Alpha Del is the brightest star in the constellation Delphinus, located in the northern sky near the celestial equator.”

Technical

Usage

Standardized by the International Astronomical Union (IAU).

Synonyms

Delphinus

Domains

AstronomyMathematics

This entry

Level
C2 · Proficiency
Frequency
Common
Updated

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