Strong's Concordance

Original word: βολίζω
Transliteration: bolizó
Definition (short): soundings
Definition (full): to heave the lead

NAS Exhaustive Concordance

Word Origin: from bolis
Definition: to heave the lead
NASB Translation: took soundings (1), took...sounding (1).
NAS Exhaustive Concordance of the Bible with Hebrew-Aramaic and Greek Dictionaries.
Copyright © 1981, 1998 by The Lockman Foundation.
All rights reserved Lockman.org

Strong's Exhaustive Concordance

From bolis; to heave the lead -- sound.

see GREEK bolis

KJV: And sounded, and found it twenty fathoms: and when they had gone a little further, they sounded again, and found it fifteen fathoms.
NASB: They took soundings and found it to be twenty fathoms; and a little farther on they took another sounding and found it to be fifteen fathoms.