English Reference

Word

diagram

Phoneticsdi·a·gram, stress on the first syllable

US/ˈdaɪəˌɡɹæm/

UK/dˈaɪəɡɹˌæm/

Definitions

01explanatory drawing

B1 · Intermediate Countable noun

n. a drawing that shows the parts of something or explains how it works.

n. a schematic or illustrative drawing intended to explain the internal workings or structural relationships of a whole.

“The instruction manual includes a diagram showing how to assemble the bookshelf.”

“The textbook provided a detailed diagram of the human heart, clearly labelling the various chambers and valves to assist the students' understanding.”

02graph or chart

B1 · Intermediate Countable noun Mathematics

n. a drawing that uses lines or shapes to show information or data.

n. a symbolic representation of information using visualisation techniques like graphs or charts.

“The teacher drew a Venn diagram on the board to compare the two stories.”

“The analyst presented a flow diagram to illustrate the sequence of operations within the new supply chain management system.”

Synonyms

03to represent visually

B2 · Upper Intermediate Academic

v. to draw a plan or sketch to explain something.

v. to represent or outline something through the use of a diagram. Transitive — requires a direct object.

“We need to diagram the process before we start building the software.”

“The linguist spent the afternoon diagramming complex sentences to demonstrate the underlying syntactic structures of the dialect.”

Collocations

Common phrases and expressions where native English speakers use the word “diagram” in context.

Verb

01. diagram illustrates

“This diagram illustrates the flow of energy through the ecosystem.”

noun + verb

02. diagram shows

“The diagram shows the relationship between the different departments.”

noun + verb

03. draw diagram

“You should draw a diagram to illustrate how the machine works.”

verb + noun

04. illustrate with diagram

“The complex theory was illustrated with a clear diagram.”

verb + prep + noun

05. interpret diagram

“Students must learn how to interpret a diagram to pass the science exam.”

verb + noun

Adjective

06. flow diagram

“A flow diagram shows the steps involved in the manufacturing process.”

adj + noun

07. labeled diagram

“Please refer to the labeled diagram on page 12 for the names of the parts.”

adj + noun

Noun

08. key to diagram

“The key to the diagram explains what each symbol represents.”

noun + prep + noun

09. accompanying diagram

“Read the text and look at the accompanying diagram carefully.”

10. diagram show

11. refer to the diagram

“Please refer to the diagram below for further clarification.”

12. represent something in a diagram

“The data is represented in a diagram to make it easier to understand.”

Etymology

From French diagramme, from Italian diagramma, from Ancient Greek διάγραμμα (diágramma).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Related words

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B1 PreliminaryIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.4.0–5.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 3.0–3.544–71TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.550–784
Frequency
Frequent
Level
B1 · IntermediateOxford
Updated

QR code

englishreference.com/q/diagram

English Reference