Names #36, #74 · Viṣṇu Sahasranāma
ईश्वरःīśvaraḥ
Ishvara — appears 2 times in the stotram, each with its own meaning
Name #36
He whose power knows no limit
From shloka 4 · chapter Matsya
सर्वः शर्वः शिवः स्थाणुर्भूतादिर्निधिरव्ययः ।
सम्भवो भावनो भर्ता प्रभवः प्रभुरीश्वरः ॥
sarvaḥ śarvaḥ śivaḥ sthāṇurbhūtādirnidhiravyayaḥ
sambhavo bhāvano bhartā prabhavaḥ prabhurīśvaraḥ
Also in this shloka: sarvaḥ · śarvaḥ · śivaḥ · sthāṇuḥ · bhūtādiḥ · nidhiravyayaḥ · sambhavaḥ · bhāvanaḥ · bhartā · prabhavaḥ · prabhuḥ
Name #74
The omnipotent ruler
From shloka 9 · chapter Matsya
ईश्वरो विक्रमी धन्वी मेधावी विक्रमः क्रमः ।
अनुत्तमो दुराधर्षः कृतज्ञः कृतिरात्मवान् ॥
īśvaro vikramī dhanvī medhāvī vikramaḥ kramaḥ
anuttamo durādharṣaḥ kṛtajñaḥ kṛtirātmavān
Also in this shloka: vikramī · dhanvī · medhāvī · vikramaḥ · kramaḥ · anuttamaḥ · durādharṣaḥ · kṛtajñaḥ · kṛtiḥ · ātmavān