In Genesis 15:6, 30:33, and Numbers 18:30, when the word means: ACCOUNT, IMPUTE, CONSIDER, that is what it signifies.

In Revelation 13:18, Numbers 23:10, and Psalm 139:18, when it means to number it signifies to learn or to know.

In Revelation 13:18, this signifies to know the nature of their beliefs from the Word and also to inquire into the quality of their religious faith which had been separated from life. (Apocalypse Explained 845, Apocalypse Revealed 608) Again, count signifies to explore and know these falsified truths of the church. (Arcana Coelestia 10217[8])