|Easton's Bible Dictionary|
(Genesis 6:4; Numbers 13:33, R.V.), giants, the Hebrew word left untranslated by the Revisers, the name of one of the Canaanitish tribes. The Revisers have, however, translated the Hebrew gibborim, in Genesis 6:4, "mighty men."
Noah Webster's Dictionary
(n. pl.) Giants.
Int. Standard Bible Encyclopedia
nef'-i-lim (nephilim): This word, translated "giants" in the King James Version, but retained in the Revised Version (British and American), is found in two passages of the Old Testament-one in Genesis 6:4, relating to the antediluvians; the other in Numbers 13:33, relating to the sons of Anak in Canaan. In the former place the Nephilim are not necessarily to be identified with the children said to be borne "the daughters of men" to "the sons of God" (Genesis 6:2, 4); indeed, they seem to be distinguished from the latter as upon the earth before this unholy commingling took place (see SONS OF GOD). But it is not easy to be certain as to the interpretation of this strange passage. In the second case they clearly represent men of gigantic stature, in comparison with whom the Israelites felt as if they were "grasshopers." This agrees with Genesis 6:4, "the mighty men that were of old, the men of renow." Septuagint, therefore, was warranted in translating by gigantes.
Nephilim (2 Occurrences)
Genesis 6:4 The Nephilim were in the earth in those days, and also after that, when God's sons came in to men's daughters. They bore children to them. Those were the mighty men who were of old, men of renown. (WEB JPS ASV NAS RSV NIV)
Numbers 13:33 There we saw the Nephilim, the sons of Anak, who come of the Nephilim: and we were in our own sight as grasshoppers, and so we were in their sight." (WEB JPS ASV BBE YLT NAS RSV NIV)