What does spark mean?
A spark is a small, brief flash of light or flame, such as the one created when two objects rub together or electricity jumps between them. The word also describes a slight trace of something intangible, as in a spark of hope or a spark of curiosity. As a verb, "to spark" means to set something alight, but it is more often used figuratively to mean that an idea, conversation, dispute, or reaction begins. The metaphor is powerful because sparks are small and short-lived, yet they can ignite materials that produce a much larger fire. Consequently, the word often suggests the beginning of a process whose effects may become substantial. It is common in everyday speech, journalism, education, and discussion of creativity, disagreement, and emotional or intellectual energy.
A small, brief flash or flame, especially one produced by friction or electricity; also a slight trace of energy, feeling, or interest.
"There was a spark of hope in her voice when she mentioned the new treatment."
In figurative use, the word typically indicates a small beginning or trace of something larger.
To produce a spark or flame, or to trigger an idea, reaction, conversation, or dispute.
"The discovery sparked renewed interest in the history of the region."
Common in figurative expressions such as "spark interest" and "spark debate."
The plural is used for separate flashes, traces of energy, or small beginnings.
"The rubbing of the stones produced a few sparks."
From a tiny spark to a spreading wildfire, this word captures how a small beginning can become something powerful.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does spark come from?
The word developed in Middle English for a small flame or glowing particle and was associated with the rapid spreading of fire. Its modern figurative meanings, referring to beginnings, traces of feeling, and triggering action, developed from the physical idea of a spark setting other material alight. Related forms such as "sparkle" and "sparkler" developed from the same verbal and noun roots.
Related word forms
How spark is actually used
The noun is commonly used both literally for a flash or flame and figuratively for a small beginning or trace. The verb is especially common in figurative combinations such as "spark interest," "spark debate," and "spark a conversation."
Easily confused with spark
A spark is usually a very brief, small flash or flame, whereas a flare is a brighter or more sustained burst of light or flame.