Valmiki Ramayana Sundara Kanda Sarga 57 Shloka 15
Original Shlokaस पूरयामास कपिर्दिशो दश समन्ततः।।5.57.15।। नदन्नादेन महता मेघस्वनमहास्वनः।
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मेघस्वनमहास्वनः one who makes a thundering noise, सः कपिः that Hanuman, नदन् noise, महता great, नादेन by the noise, दश दिशः all the ten directions, समन्ततः all over, पूरयामास filled.
The thundering noise of Hanuman filled all the ten directions with great sound.