Definitions

1. verb

to leave a written record, especially a comment or signature

“She decided to ln her thoughts in the visitor’s book.”

2. noun

a comment or signature left in a book, log, or other record

“The ln in the guest book was a kind message from the previous visitor.”

3. symbol

a mathematical operator, short for natural logarithm, used to calculate the logarithm of a number to the base e

“The equation used ln to simplify the complex calculation.”

4. abbreviation

a common abbreviation for ‘natural logarithm’ in mathematics and science

“The math problem required using ln to solve the equation.”