Another Word for Ensure: 9 Synonyms with Examples
To ensure is to make certain that something happens or is the case. It is common in instructions and policies; alternatives can be plainer or more specific.
As a verb: make certain
- make sure
- guarantee
- secure
- see to it
- confirm
- check
As a verb: protect against risk
- safeguard
- protect
- secure
- guard
Need a different word?Look up any word in the synonym finder →
How they differ
Synonyms share a meaning, not always a tone. Here is when to pick each of the main options.
- make sure
- Plainer and friendlier; often better in everyday writing.
- guarantee
- Stronger: promises the result will happen.
- secure
- Makes something certain or safe, often after effort.
- check
- Looks to confirm something is right, rather than causing it.
- safeguard
- Protects something from harm or loss.
- see to it
- Informal; takes responsibility for making something happen.
Example sentences
- make sure: Make sure the oven is off before you leave.
- guarantee: Booking early guarantees a seat near the front.
- secure: The new contract secures jobs at the factory until 2030.
- check: Please check that your name is spelled correctly.
- safeguard: Strict rules safeguard patients' personal data.
- see to it: I'll see to it that everyone gets a copy.
Opposite of ensure
- endanger
- jeopardise
- risk
More from WordNet
Less common or more specialised words WordNet lists for other senses of “ensure”. Check the meaning before you use one.
verb: insure, assure, see, control, ascertain
WordNet 3.1, Princeton University. Used under the WordNet licence.
Frequently asked questions
What is another word for “ensure”?
The most useful alternatives are “make sure”, “guarantee”, “secure”, “see to it”, “confirm”. For the main sense (make certain), “make sure” is usually the closest swap.
What is the difference between “make sure” and “guarantee”?
make sure: Plainer and friendlier; often better in everyday writing. guarantee: Stronger: promises the result will happen.
What is the opposite of “ensure”?
Common antonyms are “endanger”, “jeopardise”, “risk”.