A notable achievement:
— He performed a great feat.

synonyms: effort, exploit.

Roget 680: action, performance; doing, etc. v.; perpetration; exercise, excitation; movement, operation, evolution, work; labor etc. (exertion) 686; praxis, execution; procedure etc. (conduct) 692; handicraft; business etc. 625; agency etc. (power at work) 170.    deed, act, overt act, stitch, touch, gest transaction^†, job, doings, dealings, proceeding, measure, step, maneuver, bout, passage, move, stroke, blow; coup, coup de main, coup d'etat [Fr.]; tour de force etc. (display) 882; feat, exploit; achievement etc. (completion) 729; handiwork, workmanship; manufacture; stroke of policy etc. (plan) 626.    actor etc. (doer) 690.    ... show more

Roget 861: courage, bravery, valor; resoluteness, boldness etc. adj.; spirit, daring, gallantry, intrepidity; contempt of danger, defiance of danger; derring-do; audacity; rashness etc. 863; dash; defiance etc. 715; confidence, self-reliance.    manliness, manhood; nerve, pluck, mettle, game; heart, heart of grace; spunk, guts, face, virtue, hardihood, fortitude, intestinal fortitude; firmness etc. (stability) 150; heart of oak; bottom, backbone, spine etc. (perseverance) 604.1. resolution etc. (determination) 604; bulldog courage.    prowess, heroism, chivalry.    exploit, feat, achievement; heroic deed, heroic act; bold stroke.    man, man of mettle; hero, demigod, Amazon, Hector; lion, tiger, panther, bulldog; gamecock, fighting-cock; bully, fire eater etc. 863.    ... show more

Dutch: heldendaad, exploit, wapenfeit, prestatie, daad