Names #672, #787 · Viṣṇu Sahasranāma
महाकर्माmahākarmā
Mahakarma — appears 2 times in the stotram, each with its own meaning
Name #672
He of mighty deeds — the worlds are his works
From shloka 72 · chapter Rāma
महाक्रमो महाकर्मा महातेजा महोरगः ।
महाक्रतुर्महायज्वा महायज्ञो महाहविः ॥
mahākramo mahākarmā mahātejā mahoragaḥ
mahākraturmahāyajvā mahāyajño mahāhaviḥ
Also in this shloka: mahākramaḥ · mahātejāḥ · mahoragaḥ · mahākratuḥ · mahāyajvā · mahāyajñaḥ · mahāhaviḥ
Name #787
He of mighty works
From shloka 84 · chapter Kṛṣṇa
शुभाङ्गो लोकसारङ्गः सुतन्तुस्तन्तुवर्धनः ।
इन्द्रकर्मा महाकर्मा कृतकर्मा कृतागमः ॥
śubhāṅgo lokasāraṅgaḥ sutantustantuvardhanaḥ
indrakarmā mahākarmā kṛtakarmā kṛtāgamaḥ
Also in this shloka: śubhāṅgaḥ · lokasāraṅgaḥ · sutantuḥ · tantuvardhanaḥ · indrakarmā · kṛtakarmā · kṛtāgamaḥ