climacterics, climaxes, corners, landmarks, milestones, turning points, watersheds
breaks, cappers, clinchers, crushers, highlights, toppersconversions, metamorphoses, transfigurations, transformations, turnabouts, turnaroundsboiling points, breaking points, clutches, conjunctures, crises, crossroads, crunches, crunch times, Dunkirks, emergencies, exigencies, extremities, flash points, heads, junctures, zero hours