The meaning of MAGNITUDE is great size or extent. How to use magnitude in a sentence.

[uncountable] (formal) the great size or importance of something; the degree to which something is large or important. We did not realize the magnitude of the problem. They appear to underestimate the …

Magnitude is also a measure of the brightness of a star as it appears from earth.

A star’s brightness measured as either absolute magnitude or apparent magnitude. The latter states brightness in the sky on a scale from -26.8 (the Sun, brightest) to +25 (the faintest).

If you talk about the magnitude of something, you are talking about its great size, scale, or importance. An operation of this magnitude is going to be difficult.

In math, magnitude compares numbers by powers of 10. If your weekly allowance was $10, but your brother's was $100, his allowance would be one order of magnitude higher than yours.

Illustrated definition of Magnitude: The size of something. The magnitude of a number (also called its absolute value) is its distance from...

Values are measured by eye (visual magnitude) or more accurately by photometric or photographic methods, and range from –26.7 (the sun), through 1.5 (Sirius), down to about +30.

Jan 20, 2026 · Noun magnitude (countable and uncountable, plural magnitudes) (uncountable, countable) The absolute or relative size, extent or importance of something.

2 days ago · A magnitude 5.0 earthquake is a magnitude 5.0 whether you’re standing a mile from the fault or a hundred miles away. What changes with distance is the shaking you experience, which is a …