5 ielts words you must learn now!!! 📚📚📚 1. *Substantial* *(meaning: large or important in amount or degree)* - *Synonyms:* considerable, significant - 📘 *There has been a substantial improvement in air quality.* --- 2. *Justify* *(meaning: to show or prove something is right or reasonable)* - *Synonyms:* defend, explain - 📘 *It is difficult to justify the high cost of living in big cities.* --- 3. *Restrict* *(meaning: to limit something)* - *Synonyms:* limit, constrain - 📘 *The government may restrict car use to reduce pollution.* --- 4. *Fluctuate* *(meaning: to change frequently in level or amount)* - *Synonyms:* vary, shift - 📘 *Prices tend to fluctuate during the tourist season.* --- 5. *Pursue* *(meaning: to follow or try to achieve something over time)* - *Synonyms:* strive for, seek - 📘 *Many graduates choose to pursue a career in technology.*