Skip to main content

Home Vocabulary Quiz

Master 3500+ IELTS vocabulary words with spaced repetition and adaptive quizzes. Free forever.

PlatformAbout Us Contact Us Feedback Terms & Conditions Privacy Policy

Study TipsOur Methodology Spaced Repetition How to Learn Vocab Topic-Based Lists

GuidesBand Score Guide IELTS Test Format Academic vs General Writing Criteria Speaking Criteria Listening & Reading

Free ResourcesIELTS Practice Tests British Council Prep IDP IELTS Prep Cambridge IELTS Band Score Guide British Council Vocab IDP 500+ IELTS Words

Created with by Abu Bokkor Siddik

© 2026 IELTS Vocabs

atom

noun

intermediate

Science

Chemistry

Physics

Definition

the smallest unit of an element

Example Sentence

"Atoms combine to form molecules."

Synonyms

particle

molecule

element

Antonyms

compound

mass

IELTS Module Focus

reading

writing