The Collaborative International Dictionary of English v.0.48:

Stoppage \Stop"page\, n.
   The act of stopping, or arresting progress, motion, or
   action; also, the state of being stopped; as, the stoppage of
   the circulation of the blood; the stoppage of commerce.
   [1913 Webster]

WordNet (r) 3.0 (2006):

stoppage
    n 1: the state of inactivity following an interruption; "the
         negotiations were in arrest"; "held them in check"; "during
         the halt he got some lunch"; "the momentary stay enabled
         him to escape the blow"; "he spent the entire stop in his
         seat" [syn: arrest, check, halt, hitch, stay,
         stop, stoppage]
    2: an obstruction in a pipe or tube; "we had to call a plumber
       to clear out the blockage in the drainpipe" [syn: blockage,
       block, closure, occlusion, stop, stoppage]
    3: the act of stopping something; "the third baseman made some
       remarkable stops"; "his stoppage of the flow resulted in a
       flood" [syn: stop, stoppage]

Moby Thesaurus II by Grady Ward, 1.0:

232 Moby Thesaurus words for "stoppage":
   Jacksonian epilepsy, Rolandic epilepsy, Z, abdominal epilepsy,
   access, acquired epilepsy, activated epilepsy, affect epilepsy,
   afterthought, akinetic epilepsy, apodosis, apoplexy, arrest,
   arrestation, attack, autonomic epilepsy, bar, barrier, bell, bind,
   blank wall, blind alley, blind gut, block, blockade, blockage,
   bottleneck, bureaucratic delay, cardiac epilepsy, catastrophe,
   ceasing, cecum, cessation, check, checkmate, choking, choking off,
   clog, clonic spasm, clonus, coda, conclusion, congestion,
   constipation, consummation, convulsion, cortical epilepsy,
   costiveness, crack of doom, cramp, cul-de-sac, culmination,
   cursive epilepsy, curtain, curtains, cutoff, dead end, dead stop,
   deadlock, death, debarment, decease, delay, delayage,
   delayed reaction, denouement, destination, destiny, detention,
   determent, deterrence, discouragement, diurnal epilepsy, doom,
   double take, dragging, eclampsia, effect, embolism, embolus, end,
   end point, endgame, ending, envoi, epilepsia, epilepsia gravior,
   epilepsia major, epilepsia minor, epilepsia mitior,
   epilepsia nutans, epilepsia tarda, epilepsy, epilogue, eschatology,
   estoppel, expiration, falling sickness, fate, final solution,
   final twitch, final whistle, final words, finale, finality, finis,
   finish, fit, focal epilepsy, forbiddance, foreclosure,
   forestalling, frenzy, full stop, goal, gorge, grand mal,
   grinding halt, gun, halt, hang-up, haute mal, hindrance, holdup,
   hysterical epilepsy, ictus, impasse, impediment, infarct,
   infarction, interim, izzard, jam, lag, lagging, larval epilepsy,
   laryngeal epilepsy, laryngospasm, last, last breath, last gasp,
   last things, last trumpet, last words, latent epilepsy, latter end,
   lockjaw, lockout, logjam, matutinal epilepsy, menstrual epilepsy,
   moratorium, musicogenic epilepsy, myoclonous epilepsy,
   nocturnal epilepsy, obstacle, obstipation, obstruction, obviation,
   occlusion, omega, paperasserie, paroxysm, pause, payoff, period,
   peroration, petit mal, physiologic epilepsy, preclusion,
   prevention, prohibition, psychic epilepsy, psychomotor epilepsy,
   quietus, red tape, red-tapeism, red-tapery, reflex epilepsy,
   reprieve, resolution, respite, resting place, retardance,
   retardation, rotatoria, sealing off, seizure, sensory epilepsy,
   serial epilepsy, sit-down strike, slow-up, slowdown, slowness,
   spasm, stalemate, stand, standoff, standstill, stay,
   stay of execution, stop, stopping, stopping place, strangulation,
   strike, stroke, suspension, swan song, tardy epilepsy, term,
   terminal, termination, terminus, tetanus, tetany, throes,
   thromboembolism, thrombosis, tie-up, time lag, tonic epilepsy,
   tonic spasm, torsion spasm, traumatic epilepsy, trismus,
   ucinate epilepsy, visitation, wait, walkout, windup,
   work stoppage



The Jargon File (version 4.4.7, 29 Dec 2003):

stoppage
 /sto'p@j/, n.

    Extreme lossage that renders something (usually something vital)
    completely unusable. ?The recent system stoppage was caused by a fried
    transformer.?


The Free On-line Dictionary of Computing (30 December 2018):

stoppage

   /sto'p*j/ Extreme lossage that renders something (usually
   something vital) completely unusable.  "The recent system
   stoppage was caused by a fried transformer."

   [Jargon File]

   (1995-01-24)