As nouns the difference between salvation and justification

is that salvation is (religion) the process of being saved, the state of having been saved (from hell) while justification is a reason, explanation, or excuse which provides convincing, morally acceptable support for behavior or for a belief or occurrence.

As verbs the difference between gratify and free

is that gratify is to please while free is to make free; set at liberty; release; rid of that which confines, limits, embarrasses, or oppresses.

As an adjective free is

(label) unconstrained.

As an adverb free is

without needing to pay.

As a noun free is

(australian rules football|gaelic football) abbreviation of free kick.

As verbs the difference between mended and healed

is that mended is (mend) while healed is (heal).

As nouns the difference between mare and see

is that mare is tide (periodic change of sea level) while see is .

As nouns the difference between detergent and sanitizer

is that detergent is detergent while sanitizer is agent noun of sanitize; one who sanitizes; a product that provides a sanitized result (eg a hand sanitizer).

As verbs the difference between incarcerate and condescend

is that incarcerate is to lock away; to imprison, especially for breaking the law while condescend is (lb) to come down from one's superior position; to deign (to do something).