Dictionary Entry

momentum

noun

Find the meaning of the word momentum, plus dictionary definition, pronunciation, thesaurus-style synonyms, antonyms, and related vocabulary.

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Meaning

Dictionary meaning in a clear, student-friendly format.

The force or speed with which something moves; the impetus gained by a moving object.

Example Sentence

Once the snowball started rolling down the hill, it gained momentum and became impossible to stop.

Usage Note

Describes the tendency of a moving object to continue moving, or the force behind progress in a project or idea. Used in physics and general conversation.

Synonyms

force impetus drive thrust impulse energy

Antonyms

stillness stagnation halt stop

Seen In These Lists

This word also appears in ReadingWillow year-level vocabulary lists. Use the matching list pages to study related words in sequence.

Year 4 Word List