1.  self-control(n = noun.act) self-denial, self-discipline - the act of denying yourself; controlling your impulses;
is a kind of control
has particulars: abstinence, ascesis, asceticism, mortification

2.  self-control(n = noun.attribute) possession, self-command, self-possession, self-will, will power, willpower - the trait of resolutely controlling your own behavior;
is a kind of firmness, firmness of purpose, resoluteness, resolution, resolve
has particulars: nerves, presence of mind

   Control of one's self; restraint exercised over one's self; self-command. [1913 Webster]

self-control, n. the power of controlling one's external reactions, emotions, etc.

Derivative:
self-controlled adj.

N  inexcitability, imperturbability, inirritability, even temper, tranquil mind, dispassion, tolerance, patience, coolth, passiveness, hebetude, hebetation, impassibility, stupefaction, coolness, calmness, composure, placidity, indisturbance, imperturbation, sang froid, tranquility, serenity, quiet, quietude, peace of mind, mental calmness, staidness, gravity, sobriety, Quakerism, philosophy, equanimity, stoicism, command of temper, self-possession, self-control, self-command, self-restraint, ice water in one's veins, presence of mind, submission, resignation, sufferance, supportance, endurance, longsufferance, forbearance, longanimity, fortitude, patience of Job, patience on a monument, patience 'sovereign o'er transmuted ill', moderation, repression of feelings, subjugation of feeling, restraint, tranquillization, inexcitable, unexcitable, imperturbable, unsusceptible, unpassionate, dispassionate, cold-blooded, irritable, enduring, stoical, Platonic, philosophic, staid, stayed, sober, sober minded, grave, sober as a judge, grave as a judge, sedate, demure, cool-headed, easy-going, peaceful, placid, calm, quiet as a mouse, tranquil, serene, cool as a cucumber, cool as a custard, undemonstrative, temperate, composed, collected, unexcited, unstirred, unruffled, undisturbed, unperturbed, unimpassioned, unoffended, unresisting, meek, tolerant, patient, patient as Job, submissive, tame, content, resigned, chastened, subdued, lamblike, gentle as a lamb, suaviter in modo, mild as mothers milk, soft as peppermint, armed with patience, bearing with, clement, long-suffering, like patience on a monument smiling at grief, aequo animo, in cold blood, more in sorrow than in anger, Int, patience!, and shuffle the cards, cool calm and collected, keep calm in the midst of a storm, adversity's sweet milk, philosophy, mens aequa in arduis philosophia stemma non inspec, quo me cumque rapit tempestas deferor hospes, they also serve who only stand and wait.

N  disinterestedness, generosity, liberality, liberalism, altruism, benevolence, elevation, loftiness of purpose, exaltation, magnanimity, chivalry, chivalrous spirit, heroism, sublimity, self-denial, self-abnegation, self-sacrifice, self-immolation, self-control, stoicism, devotion, martyrdom, suttee, labor of love, disinterested, unselfish, self-denying, self-sacrificing, self- devoted, generous, handsome, liberal, noble, broad-minded, noble-minded, high-minded, princely, great, high, elevated, lofty, exalted, spirited, stoical, magnanimous, great-hearted, large-hearted, chivalrous, heroic, sublime, unbought, unbribed, uncorrupted, non vobis solum.

N  virtue, virtuousness, morality, moral rectitude, integrity, nobleness, morals, ethics, cardinal virtues, merit, worth, desert, excellence, credit, self-control, self-denial, well-doing, good actions, good behavior, discharge of duty, fulfillment of duty, performance of duty, well-spent life, innocence, virtuous, good, innocent, meritorious, deserving, worthy, desertful, correct, dutiful, duteous, moral, right, righteous, right- minded, well-intentioned, creditable, laudable, commendable, praiseworthy, above all praise, beyond all praise, excellent, admirable, sterling, pure, noble, whole-souled, exemplary, matchless, peerless, saintly, saint-like, heaven-born, angelic, seraphic, godlike, virtuously, adj, e merito, esse quam videri bonus malebat, Schonheit vergeht Tugend besteht, virtue the greatest of all monarchies, virtus laudatur et alget, virtus vincit invidiam.

N  temperance, moderation, sobriety, soberness, forbearance, abnegation, self-denial, self-restraint, self-control, frugality, vegetarianism, teetotalism, total abstinence, abstinence, abstemiousness, Encratism, prohibition, system of Pythagoras, system of Cornaro, Pythagorism, Stoicism, vegetarian, Pythagorean, gymnosophist, teetotaler, abstainer, designated driver, Encratite, fruitarian, hydropot, temperate, moderate, sober, frugal, sparing, abstemious, abstinent, within compass, measured, on the wagon, on the water wagon, dry, Pythagorean, vegetarian, teetotal, appetitus rationi obediant, l'abstenir pour jouir c'est l'epicurisme de la rai, trahit sua quemque voluptas.