Mantra 1
नम आव्याधिनीभ्यो विविध्यन्तीभ्यश्च वो नमः |
Meaning:
आव्याधिनीभ्यः- Of the form of women capable of attacking on all four sides, विविध्यन्तीभ्यश्च- and women capable of attacking in different ways, वः- to you, नमः- prostration.
In this Anuvakam, as in the previous Anuvakam, Bhagavan is worshipped as being in all forms (Sarvaatmaka:).
Mantra 2
नम उगणाभ्यस्तृँहतीभ्यश्च वो नमः |
Meaning:
उगणाभ्यः- Of the form of superior groups like ‘Sapta Matrukaas’, तृँहतीभ्यः- and fearful Devatas adept in torturing, like Durga, वः- to you, नमः- prostration.
Mantra 3
नमो गृत्सेभ्यो गृत्सपतिभ्यश्च वो नमः |
Meaning:
गृत्सेभ्यः- Of the form of those who are attached to sense objects, गृत्सपतिभ्यः च- and those who protect them, वः- to you, नमः- prostration.
गृत्साः- Alternative meaning- intelligent persons living on power of intellect.
Mantra 4
नमो व्रातेभ्यो व्रातपतिभ्यश्च वो नमः
Meaning:
व्रातेभ्यः- Of the form of persons of different occupations, व्रातपतिभ्यश्च- and those who protect them, वः- to you, नमः- prostration.
http://www.kamakoti.org/kamakoti/stotra/Sri%20Rudram%20Anuvakam4.html