Free OET Vocabulary Improver
Replace weak everyday verbs and vague nouns in your OET letter with the precise healthcare phrasing that examiners reward in the Language and Genre & Style criteria. Free instant suggestions.
A free tool from the OET writing correction service — human expert corrections available from $15 when you need a full grade.
How to use the OET Vocabulary Improver
Step 1
Paste a paragraph
Drop a paragraph of your OET letter into the input.
Step 2
See the upgrades
Weak words are flagged with a stronger alternative used in healthcare writing.
Step 3
Choose carefully
Don't accept every suggestion — over-upgrading hurts Conciseness. Use the changes that fit the case.
Step 4
Re-check
Rewrite and run the Writing Checker for criterion-level feedback.
Frequently asked questions
Will fancier vocabulary boost my band?+
Only when used precisely. Examiners reward fit, not flash. Replacing 'said' with 'reported' fits a clinical context; replacing it with 'verbalised' usually doesn't.
Does this hurt the Conciseness criterion?+
It can if you over-upgrade. The tool also flags wordy alternatives to avoid.
Are the suggestions UK or US English?+
Suggestions default to UK healthcare phrasing (used by the NHS, NMBI, AHPRA in writing). Toggle to US for ECFMG-bound candidates.
Is there a list I can study?+
Yes — see our OET vocabulary list and collocations guides for systematic study.
This tool was designed by Dr. Mariam, PhD (English Professor, 20+ years of OET and IELTS teaching, 11,000+ letters personally marked). OET is owned by Cambridge Boxhill Language Assessment (CBLA). This tool is independent of CBLA and is not an official OET product. Target keyword: oet writing vocabulary improver.
Want an expert's eyes on your OET vocabulary? Dr Mariam's OET writing correction service marks every letter against all six OET writing criteria and returns line-by-line corrections within 24–72 hours.
See how it works