magnitude
UK: ˈmæɡnɪtjuːd | US: ˈmæɡnɪtuːd
n. the great size, extent, or importance of something
n. (physics) a numerical quantity representing the energy or size of an event (e.g., earthquake magnitude)
n. (astronomy) the brightness of a celestial object
The word magnitude originates from Latin magnitudo, combining magnus (meaning "great" or "large") and the suffix -tudo (denoting a state or condition). This reflects its core meaning of "greatness" in size, scale, or importance. Over time, it was adopted into Middle English via Old French, retaining its original sense while expanding into scientific contexts (e.g., measuring earthquake energy or stellar brightness). The logic is straightforward: magni- anchors the concept of bigness, while -tude abstracts it into a measurable or qualitative state.
The magnitude of the earthquake was recorded at 7.2 on the Richter scale.
She underestimated the magnitude of the project until she saw the timeline.
Astronomers measure the magnitude of stars to compare their brightness.
The magnitude of his generosity became clear when he donated his entire savings.
The disaster’s magnitude overwhelmed local rescue teams.