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

deficiency

noun

advanced

Health

Science

Definition

a lack or shortage

Example Sentence

"Vitamin deficiency can cause health problems."

Synonyms

shortage

lack

scarcity

Antonyms

surplus

IELTS Module Focus

reading

writing