Genesis 6:1לָרֹב
Now when men began to multiply on the face of the earth and daughters were born to them,
Exodus 23:29וְרַבָּה
I will not drive them out before you in a single year; otherwise the land would become desolate and wild animals would multiply against you.
Deuteronomy 7:7מֵרֻבְּכֶם
The LORD did not set His affection on you and choose you because you were more numerous than the other peoples, for you were the fewest of all peoples.
Psalm 3:1רַבּוּ
O LORD, how my foes have increased! How many rise up against me!
Isaiah 59:12רַבּוּ
For our transgressions are multiplied before You, and our sins testify against us. Our transgressions are indeed with us, and we know our iniquities:
Jeremiah 5:6רַבּוּ
Therefore a lion from the forest will strike them down, a wolf from the desert will ravage them. A leopard will lie in wait near their cities, and everyone who ventures out will be torn to pieces. For their rebellious acts are many, and their unfaithful deeds are numerous.

Brown-Driver-Briggs

[רָבַב] vb. be or become, many, much

Sources: Brown-Driver-Briggs (1906, public domain) from the Open Scriptures Hebrew Lexicon (CC BY 4.0), glosses from STEPBible TBESH (CC BY 4.0); STEPBible TAHOT (Hebrew Bible, Leningrad Codex, CC BY 4.0); the Berean Standard Bible (public domain). Reformatted by Word Study, wording unchanged. All sources and licenses.