All Words
Thursday, March 19, 2026
Word of the Day

oscillate

verb

To move or swing back and forth in a regular rhythm; to waver between extremes of opinion, action, or quality; to fluctuate.

Intermediate - Known to most educated speakers

Etymology

From Latin oscillare meaning "to swing," from oscillum (a small face or mask hung as a charm), which was hung to swing in the wind.

Examples in Use

  • 1.

    "The pendulum oscillated with perfect regularity."

  • 2.

    "Her mood oscillated between hope and despair."

  • 3.

    "Radio waves oscillate at specific frequencies."

Related Vocabulary

Synonyms

swingfluctuatewavervacillatealternate

Related Words

vibrateswayrockpulse

Fun Fact

The origin story involves ancient Romans hanging masks (oscilla) in trees to swing in the wind as offerings. These swinging masks gave us a word for any back-and-forth motion.

Word Game Tips

Letters: 9 letters (O, S, C, I, L, L, A, T, E)

Scrabble Value: 11 points

Tip: Words ending in "TE" are often good scoring opportunities.

Put Your Vocabulary to the Test!

Ready to find words like "oscillate" in a puzzle? Try today's Zabble challenge!