Guarantee vs. Ensure

Something that assures a particular outcome or condition

To make sure or certain; insure

A promise or assurance, especially one given in writing, that attests to the quality or durability of a product or service.

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

A pledge that something will be performed in a specified manner.

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

A guarantor.

To make sure. See Insure.

A guaranty.

To betroth.

To assume responsibility for the debt, default, or miscarriage of.

make certain of;

To assume responsibility for the quality or performance of

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

To undertake to do, accomplish, or ensure (something) for another

To make certain

To guaranty.

To furnish security for.

To express or declare with conviction

Anything that assures a certain outcome.

A legal assurance of something, e.g. a security for the fulfillment of an obligation.

More specifically, a written declaration that a certain product will be fit for a purpose and work correctly; a warranty

The person to whom a guarantee is made.

(colloquial) A person who gives such a guarantee; a guarantor.

To give an assurance that something will be done right.

To assume or take responsibility for a debt or other obligation.

To make something certain.

In law and common usage: A promise to answer for the payment of some debt, or the performance of some duty, in case of the failure of another person, who is, in the first instance, liable to such payment or performance; an engagement which secures or insures another against a contingency; a warranty; a security. Same as Guaranty.

One who binds himself to see an undertaking of another performed; a guarantor.

The person to whom a guaranty is made; - the correlative of guarantor.

In law and common usage: to undertake or engage for the payment of (a debt) or the performance of (a duty) by another person; to undertake to secure (a possession, right, claim, etc.) to another against a specified contingency, or in all events; to give a guarantee concerning; to engage, assure, or secure as a thing that may be depended on; to warrant; as, to guarantee the execution of a treaty.

a written assurance that some product or service will be provided or will meet certain specifications

a pledge that something will happen or that something is true;

a collateral agreement to answer for the debt of another in case that person defaults

give surety or assume responsibility;

make certain of;

promise to do or accomplish;

stand behind and guarantee the quality, accuracy, or condition of;