ensure
HighFormal, more common in written and professional contexts than in casual speech.
Definition
Meaning
to make certain that something will happen or be the case; to guarantee.
To secure or protect something from risk; to make something safe or certain to occur by taking specific actions or implementing safeguards.
Linguistics
Semantic Notes
Often used with a focus on proactive measures to achieve a desired outcome. Implies a stronger guarantee than 'make sure'. Typically followed by a direct object or a that-clause.
Dialectal Variation
British vs American Usage
Differences
Usage is largely identical. However, British English speakers might occasionally use 'insure' in a non-financial sense (e.g., 'to insure safety'), which is considered non-standard by some authorities. In American English, 'insure' is strictly for financial/risk contexts.
Connotations
In both varieties, 'ensure' connotes a formal or official guarantee. No significant difference in connotation.
Frequency
Slightly more frequent in American English in formal writing. In British English, 'make sure' is often preferred in everyday spoken language.
Vocabulary
Collocations
Grammar
Valency Patterns
ensure + noun phrase (ensure success)ensure + that-clause (ensure that the data is secure)ensure + noun phrase + verb phrase (ensure the door locked)Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “ensure against (to protect from)”
- “ensure for (to secure for someone)”
Usage
Context Usage
Business
The new procedures will ensure regulatory compliance across all departments.
Academic
Random sampling was used to ensure the representativeness of the data.
Everyday
Could you ensure the cat has fresh water before you leave?
Technical
The protocol ensures data integrity during transmission.
Examples
By Part of Speech
verb
British English
- The contract ensures our rights are protected.
- Please ensure all lights are switched off.
American English
- The agreement ensures our rights are protected.
- Please ensure all lights are turned off.
adjective
British English
- The ensured outcome was satisfactory.
- An ensured supply chain is critical.
American English
- The ensured outcome was satisfactory.
- A guaranteed supply chain is critical.
Examples
By CEFR Level
- Ensure you have your ticket before leaving.
- Mum ensured we had enough food for the trip.
- The teacher ensures everyone understands the task.
- This software ensures your computer is safe.
- Strict laws ensure that environmental standards are met.
- The treaty was designed to ensure lasting peace.
- The committee's oversight ensures adherence to ethical guidelines.
- Sophisticated algorithms ensure the system's robustness against failures.
Learning
Memory Aids
Mnemonic
Think: ENable SUREty. To ENSURE is to make something SURE.
Conceptual Metaphor
ENSURING IS CONSTRUCTING A SAFE PATH (e.g., 'We must pave the way to ensure success.')
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'insure' (страховать).
- The Russian 'обеспечивать' is broader; 'ensure' is specifically about making an outcome certain, not about providing supplies.
- Avoid calquing the structure 'ensure to do something'; use 'ensure that something is done'.
Common Mistakes
- Incorrect: 'I will ensure to lock the door.' Correct: 'I will ensure that the door is locked.'
- Confusing 'ensure' with 'insure' in financial contexts.
- Using 'ensure' without an object (it is a transitive verb).
Practice
Quiz
Which of the following sentences uses 'ensure' correctly?
FAQ
Frequently Asked Questions
'Ensure' means to make certain. 'Insure' relates to financial protection against risk. 'Assure' means to remove doubt or tell someone confidently.
No, 'ensure' is a transitive verb and requires an object (a noun or a clause).
No, the correct pattern is 'ensure that + clause' or 'ensure + noun'. Avoid 'ensure to do something'.
It is more formal than 'make sure'. Common in professional, academic, and legal contexts. In casual conversation, 'make sure' is often preferred.