Difference between Repel and Rebuff

REPEL vs REBUFF: NOUN

A sudden resistance or refusal.
Sudden check; unexpected repulse; defeat; refusal; repellence; rejection of solicitation.
Repercussion, or beating back; a quick and sudden resistance.
A holding off or in check; repulsion, as of inquiry or solicitation; peremptory denial or refusal.
An interposed check; a defeat.
A repelling; a repercussion.
A check or an abrupt setback to progress or action.
A blunt or abrupt repulse or refusal, as to an offer.
A deliberate discourteous act (usually as an expression of anger or disapproval)
An instance of driving away or warding off

To drive back; to force to return; to check the advance of; to repulse as, to repel an enemy or an assailant.
To resist or oppose effectually.

To reject bluntly, often disdainfully; snub: : refuse.
To repel or drive back.
To beat back; to offer sudden resistance to; to check; to repel or repulse violently, harshly, or uncourteously.

Cause aversion in
Be repellent to
In medicine, to prevent such an afflux of fluids to any particular part as would render it tumid or swollen.
To act with force in opposition to force impressed; antagonize.
Synonyms and Decline, Reject, etc. (see refuse), parry, ward off, defeat.
To drive back or away: the opposite of attract. See repulsion.
To encounter in any manner with effectual resistance; resist; oppose; reject: as, to repel an encroachment; to repel an argument.
To drive back; force to return; check the advance of; repulse: as, to repel an assailant.

To repel; make inflexible resistance to; check; put off with an abrupt and unexpected denial.
Synonyms To repel, repulse, throw back. See refuse.

Resist, Push back, Force back, Fight off, Drive off, Drive back, Beat back, Turn off, Brush off, Disgust, Revolt, Snub, Drive, Rebuff, Repulse

Denounce, Slap, Rebut, Refusal, Spurn, Reject, Rejection, Drive back, Drive off, Fight off, Slight, Brush off, Repulse, Repel, Snub

Rebut, Reject, Defeat, Counter, Displace, Suppress, Foil, Vanquish, Resist, Brush off, Disgust, Revolt, Snub, Drive, Repulse

Rebuke, Push, Refuse, Condemn, Denounce, Slap, Rebut, Refusal, Reject, Rejection, Slight, Brush off, Repulse, Repel, Snub

Do like charges repel or attract one another?
Capitol grounds, as if to repel an attack.
The ability of water to repel other substances.
It is wrapped in copper to repel sperm.
Lemongrass planted around the home will repel snakes.
Instantly they took measures to repel the attack.
Why do some risks appeal while others repel?
Can Bags Full of Water Really Repel Flies?
All electrons are alike and repel each other.
For example some alkyl groups can only repel water but not oil and others can repel both water and oil.