Boyd’s Bible Dictionary:
(record keeper). The high and responsible office of annalist and royal counselor in the Hebrew state (2 Sam. 8:16; 20:24; 1 Kings 4:3; 1 Chron. 18:15).
Concise Bible Dictionary:
One in high office, who kept the records of the kingdom, a remembrancer (2 Sam. 8:16; 2 Kings 18:18; 1 Chron. 18:15; Isa. 36:3, 22).