Difference between Ensure and Ascertain

ENSURE vs ASCERTAIN: VERB

Be careful or certain to do something; make certain of something
Find out, learn, or determine with certainty, usually by making an inquiry or other effort
After a calculation, investigation, experiment, survey, or study
Learn or discover with certainty
To find out definitely; to discover or establish.

To make certain, definite, and precise.
To render (a person) certain; to cause to feel certain; to make confident; to assure; to apprise.
To make (a thing) certain to the mind; to free from obscurity, doubt, or change; to make sure of; to fix; to determine.
To find out or learn for a certainty, by trial, examination, or experiment; to get to know.
To discover with certainty, as through examination or experimentation. : discover.

Make certain of something
To establish with certainty; render invariable, or not subject to caprice; fix.
To make certain or sure; certify; assure; inform.
To make sure of; insure.
To find out by trial, examination, or experiment, so as to know as certain; acquire an accurate knowledge of: as, to ascertain the weight of a commodity or the purity of a metal.
To make certain; determine; define or reduce to precision by removing doubt, obscurity, or ambiguity; establish; prove.

Reassure, Maintain, Assures, Assured, Safeguard, Assuring, See to it, Control, See, Check, Ascertain, Secure, Guarantee, Insure, Assure

See to it, Find out, Watch, Control, Evidence, Learn, Insure, See, Check, Demonstrate, Tell, Assure, Ensure, Find, Determine

Maximize, Protect, Guaranteeing, Reassure, Assured, Safeguard, Assuring, Control, See, Check, Ascertain, Secure, Guarantee, Insure, Assure

Assess, Find out, Watch, Control, Evidence, Learn, Insure, See, Check, Demonstrate, Tell, Assure, Ensure, Find, Determine

Ensure adherence to IT processes, policies and procedures.
Ensure suitable building materials are selected for application.
Ensure the device has latest software version installed.
Resident customers must ensure that their mobile no.
How do you ensure security of my data?
Kindly ensure that the test form is submitted on priority to ensure that the New Connection process may be completed.
Grants by having to ensure that need to ensure that person may put your choice.
Ensure there is more than one competent person present when making adjustments to ensure they are correct and safe for the Patient.
We could ensure proactive measures to ensure that we control the whole demolition process.
Place the fish sticks on top and ensure proper spacing to ensure optimal heat distribution.