Today's Word

Oscillate

OSS-uh-layt

Definition

(verb) To move or swing back and forth in a steady rhythm; to waver between opposing positions or decisions.

Example

She oscillated between taking the job offer and going back to school.

Fun Fact

From Latin oscillare, “to swing,” the word was first used in reference to physical devices like pendulums and fans. Over time, it took on metaphorical meaning—describing emotional or intellectual back-and-forth. In psychology and politics alike, oscillation suggests indecision, ambivalence, or changing perspectives.

Previous Words

Effervescent

Today's Word

Effervescent

ef-er-VES-ent

Definition

(adjective) Bubbling with enthusiasm, energy, or liveliness; vivacious and high-spirited.

Example

Her effervescent personality made every team meeting feel like something worth showing up for.

Word Origin

From Latin effervescere — ex- (“out”) + fervescere (“to begin boiling”), from fervere (“to boil or bubble”). The word entered English in the late 17th century, first used literally to describe liquids fizzing and bubbling, before taking on its figurative sense of vibrant personality in the 18th century.

Fun Fact

The word “effervescent” has long been associated with champagne culture — when carbonated drinks became fashionable among European elites in the 1700s, the word quickly leaped from chemistry into social vocabulary. Writers began describing charming, bubbly people the same way they described a freshly poured glass of sparkling wine. Today, personality psychologists sometimes use “effervescence” as an informal shorthand for a cluster of traits including high positive affect, social energy, and expressiveness.

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Oscillate

Definition

Example

Previous Words

Effervescent

Effervescent

Definition

Example

Word Origin

Effervescent

Facetious

Capricious

Sedulous

Licentious