In lang=en terms the difference between valid and actual

is that valid is of an argument: whose conclusion is always true whenever its premises are true while actual is in action at the time being; now existing; current.

As adjectives the difference between valid and actual

is that valid is well grounded or justifiable, pertinent while actual is existing in act or reality, not just potentially; really acted or acting; occurring in fact.

As a noun actual is

an actual, real one; notably.

As a noun wing

is an appendage of an animal's (bird, bat, insect) body that enables it to fly.

As a verb wing

is (lb) to injure slightly (as with a gunshot), especially in the arm.

As an adjective fins is

finnish.

As a proper noun fins is

finnish (language ).

As verbs the difference between reinstate and revive

is that reinstate is to restore somebody to a former position or rank while revive is to return to life; to recover life or strength; to live anew; to become reanimated or reinvigorated.

As a noun planner

is one who plans.

As an adjective spontaneous is

self-generated; happening without any apparent external cause.

As nouns the difference between part and break

is that part is party (political group) while break is break.

As verbs the difference between find and figure

is that find is to encounter or discover by accident; to happen upon while figure is .

As a noun find

is anything that is found (usually valuable), as objects on an archeological site or a person with talent.

As an adjective figure is

figurative.

As nouns the difference between changeout and moot

is that changeout is the replacement of a part for a better one, especially during maintenance while moot is size, measure.

Debtable is likely misspelled.

Debtable has no English definition.

As an adjective moot is

subject to discussion (originally at a moot); arguable, debatable, unsolved or impossible to solve.

As a noun moot is

a moot court.

As a verb moot is

to bring up as a subject for debate, to propose.

As nouns the difference between overeenkomst and contract

is that overeenkomst is (l) while contract is an agreement between two or more parties, to perform a specific job or work order, often temporary or of fixed duration and usually governed by a written agreement.

As an adjective contract is

(obsolete) contracted; affianced; betrothed.

As a verb contract is

(ambitransitive) to draw together or nearer; to shorten, narrow, or lessen.

As nouns the difference between catalyst and biocatalysts

is that catalyst is (chemistry) a substance that increases the rate of a chemical reaction without being consumed in the process while biocatalysts is .