Boyd’s Bible Dictionary:

(height). Levitical city in Benjamin, noted as scene of the massacre of the priests (1 Sam. 21:1; 22:19-23; Neh. 11:32).

Concise Bible Dictionary:

City in the tribe of Benjamin, in which Ahimelech the priest dwelt with the tabernacle of the Lord. It was visited by David when he fled from Saul, and he and his followers ate the hallowed bread. David said it “is in a manner common” (Compare Matt. 12:3-4). The priest also gave him the sword of Goliath. Through the treachery of Doeg, this led to the death of Ahimelech, his father’s house, and all the inhabitants of the city of Nob (1 Sam. 21:1-9; 1 Sam. 22:9-19; Neh. 11:32; Isa. 10:32). Not identified.

Strong’s Dictionary of Hebrew Words:

the same as 5108; fruit; Nob, a place in Palestine
KJV Usage:

Jackson’s Dictionary of Scripture Proper Names:

fruit: empty: or possibly same as Nebo

Potts’ Bible Proper Names:

Sublimity; height; prophecy; fruit:―a place in Palestine, 1 Sam. 22:11. {Sublimitas}