Ensure vs. Ascertain

Ensureverb

(transitive) To make a pledge to (someone); to promise, guarantee (someone of something); to assure.

Ensureverb

(intransitive) To make sure or certain of something (usually some future event or condition).

Ensureverb

To make sure. See Insure.

Ensureverb

To betroth.

Ensureverb

make certain of;

Ensureverb

be careful or certain to do something; make certain of something;

Ensure

Ensure is an American brand of nutritional supplements and meal replacements manufactured by Abbott Laboratories. A 237-ml (8-fl oz) bottle of Ensure Original contains 220 calories, six grams of fat, 15 grams of sugar, and nine grams of protein.

Ascertainverb

To find out definitely; to discover or establish.

Ascertainverb

(obsolete) To make (someone) certain or confident about something; to inform.

Ascertainverb

(archaic) To establish, to prove.

Ascertainverb

(archaic) To ensure or effect.

Ascertainverb

To render (a person) certain; to cause to feel certain; to make confident; to assure; to apprise.

Ascertainverb

To make (a thing) certain to the mind; to free from obscurity, doubt, or change; to make sure of; to fix; to determine.

Ascertainverb

To find out or learn for a certainty, by trial, examination, or experiment; to get to know; as, to ascertain the weight of a commodity, or the purity of a metal.

Ascertainverb

after a calculation, investigation, experiment, survey, or study;

Ascertainverb

be careful or certain to do something; make certain of something;

Ascertainverb

find out, learn, or determine with certainty, usually by making an inquiry or other effort;

Ascertainverb

learn or discover with certainty