Devalue vs. Invalidate — What's the Difference?

To lessen or cancel the value of.

To make invalid; nullify.

To lower the exchange value of (a currency) by lowering its gold equivalency.

To make invalid. Especially applied to contract law.

To lower the exchange value of a currency by lowering its gold equivalency.

To make or declare (an argument, statement, or theory) unsound or erroneous; disprove.

(transitive) To lower or remove the value of something.

To render invalid; discredit.

(intransitive) To lose value; to depreciate.

To render invalid; to weaken or lessen the force of; to destroy the authority of; to render of no force or effect; to overthrow; as, to invalidate an agreement or argument.

Remove the value from; deprive of its value

Declare invalid;

Lower the value or quality of;

Of cheques or tickets

Lose in value;

Show to be invalid

Take away the legal force of or render ineffective;