Difference between Superfluous and Supernumerary

SUPERFLUOUS vs SUPERNUMERARY: NOUN

One that is in excess of the regular, necessary, or usual number.
A minor actor in crowd scenes
An actor without a speaking part, as one who appears in a crowd scene.
A person or thing beyond the number stated, or beyond what is necessary or usual; especially, a person not formally a member of a regular body or staff of officials or employees, but retained or employed to act as an assistant or substitute in case of necessity.
Specifically— A military officer attached to a corps or arm of the service where no vacancy exists. Such an officer receives, in the United States army, the rank of brevet second lieutenant, or additional second lieutenant.
Theat., one not belonging to the regular company, who appears on the stage, but has no lines to speak. Often colloquially abbreviated super and supe.
A person or thing beyond what is necessary or usual; especially, a person employed not for regular service, but only to fill the place of another in case of need; specifically, in theaters, a person who is not a regular actor, but is employed to appear in a stage spectacle.
A civil designation for somebody who works in a group, association or public office, without forming part of the regular staff; those distinguished from numerary. (For example, supernumerary judges are those who help the regular judges when there is a surplus amount of work.)
An extra or walk-on in a film or play; spear-carrier.
A person serving no apparent function

In excess of what is required or sufficient.
Serving no useful purpose; having no excuse for being
More than is wanted or is sufficient; rendered unnecessary by superabundance; unnecessary; useless; excessive.
Being beyond what is required or sufficient.
More than is needed, desired, or required
An interval that exceeds a major or perfect interval by a semitone.

More than is wanted or sufficient; unnecessary from being in excess of what is needed; excessive; redundant; needless: as, a composition abounding with superfluous words.
Supplied with superfluities; having somewhat beyond necessaries.
Doing more than what is called for; supererogatory.
Excessive.
In music, of intervals, augmented.
Having no excuse for being
Serving no useful purpose

Exceeding a number stated or prescribed: as, a supernumerary officer in a regiment.
Exceeding a necessary or usual number.

Extraneous, Useless, Surplus, Excess, Spare, Supernumerary, Extra, Supererogatory, Wasted, Worthless, Unneeded, Redundant, Otiose, Unnecessary, Pointless

Excessive, Residual, Additional, Temporary, Equivalent, Spear carrier, Unneeded, Unnecessary, Spare, Extra, Surplus, Excess, Supererogatory, Redundant, Superfluous

Extraneous, Useless, Surplus, Excess, Spare, Supernumerary, Extra, Supererogatory, Wasted, Worthless, Unneeded, Redundant, Otiose, Unnecessary, Pointless

Excessive, Residual, Additional, Temporary, Equivalent, Spear carrier, Unneeded, Unnecessary, Spare, Extra, Surplus, Excess, Supererogatory, Redundant, Superfluous

Superfluous copies should not be made or kept.
SUBMERGED BALLAST PUMPS make the pump room superfluous.
This description, of course, made the section superfluous.
First, a statute cannot be interpreted as superfluous.
Spot superfluous adjectives, weak verbs, and unwanted repetitions.
What a superfluous use of time and money.
It would be superfluous to multiply these examples.
These are not superfluous decorations or lifestyle choices.
Internal Revenue Service Omit superfluous words Words are superfluous when they can be replaced with fewer words that mean the same thing.
And to the believer it must be superfluous, if true notices of Christ are superfluous to believers.

Is supernumerary chromatin involved in gametophytic apomixis of polyploid plants?
Supernumerary Pool teachers will receive full salary and insured benefits.
Supernumerary teeth in the pharyngeal dentition of slow developing zebrafish.
Fake hands in action: embodiment and control of supernumerary limbs.
FISH analysis of supernumerary ring chromosome in dermatofibrosarcoma protuberans.
Carcinoma of supernumerary breast vulva with bilateral mammary cancer.
Colleges are NOT covered under the Supernumerary Quota.
Supernumerary fissures usually separate segments rather than lobes.
Supernumerary births consequently add only to your mortality.
When it is fully formed with a supernumerary metacarpal and functional, it may be impossible to determine which of the fingers is supernumerary.