Log

Part of speech: noun, verb

Pronunciation: /lɒɡ/

Definitions

1. A thick piece of wood that has been cut from a tree | A record of events or transactions kept in writing or digital form | To enter information systematically for tracking or analysis
2. A large wooden segment often used for construction or fuel | A documented account of occurrences maintained for reference | The act of systematically recording details for future review or analysis
3. A substantial piece of timber obtained from a tree | An official record documenting a series of events or transactions | The process of accurately noting information for monitoring or assessment

Etymology: Before it became associated with records and data, the term originally referred to a simple, physical object: a cut piece of tree trunk or large branch. This meaning dates back to Old English "logg," which denoted a thick piece of wood or timber. The word likely had roots in the Germanic family of languages, with cognates in Old Norse and Old High German, all referring to similar wooden materials. The physical object was central to early human life, serving many purposes from building to heating, which made the word a common and practical part of everyday language. The transition from a chunk of wood to the abstract sense of a record or written account is tied to maritime history. In the age of sailing ships, navigators needed a reliable way to track their vessel’s speed and progress. They would throw a wooden log attached to a rope knotted at intervals into the water and measure how much line played out over a given time. This device was called a "log," borrowing directly from the word for a piece of wood. From this practice emerged the "logbook," a daily record of a ship’s journey, weather, and other important details. By extension, the verb form developed—meaning to record or enter information systematically. Early usage of the verb to log something in writing dates back to the 17th century, particularly in nautical contexts. Over time, this sense broadened beyond ships to include any systematic recording of events or data. The word found new relevance with the advent of railways, aviation, and eventually computing, where logs became essential for tracking operations and performance. The connection between a simple wooden object and the complex concept of data recording illustrates how practical tools can shape language in unexpected ways. The original physical log was a tangible means of measurement, and from it grew the metaphorical idea of keeping track, which remains central to the word’s use today. Whether referring to a piece of timber or an entry in a diary or computer file, the term carries a legacy of human effort to measure, understand, and document the world.

Synonyms: record, register, journal, chronicle, entry