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IELTS General

Word forms: noun, verb, adjective, adverb

Small errors in word form lower your Lexical Resource score.

10 minutes · A free lesson from Vocabulary: topics and word forms

Noun Verb Adjective Adverb
significance signify significant significantly
economy economise economic / economical economically
flexibility flex flexible flexibly
environment — environmental environmentally

Lesson quiz

Check what you have learned. Choose an answer to see whether it is right, and why.

Quick check: Which word fits “___ growth”?

  1. economical
  2. economically
  3. economic
Show the answer

C: economic — economic means connected with the economy. economical means not wasting money.

Quick check: Which word describes a car that uses little fuel?

  1. economic
  2. economical
  3. economically
Show the answer

B: economical — An economical car does not waste money.

Quick check: Which is the adverb?

  1. significantly
  2. significance
  3. significant
Show the answer

A: significantly — Many adverbs end in -ly: significantly, flexibly, environmentally.

Quick check: Which is the noun?

  1. flexible
  2. flexibility
  3. flexibly
Show the answer

B: flexibility — flexibility is the noun, flexible the adjective, flexibly the adverb.

Practise: word forms
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