English Reference

Word

spur

US/ˈspɝ/

UK/spˈɜː/

Definitions

01to encourage action

B2

v. to encourage someone to do something or to make something happen faster.

v. to incite or stimulate a person or process into more vigorous action.

“The low interest rates helped spur the housing market last year.”

“The government hope that the new tax incentives will spur investment in renewable energy sectors across the country.”

Antonyms

03a motivation

B2

n. something that acts as an incentive or makes you want to work harder.

n. a stimulus or incentive that prompts an increase in activity or effort.

“The threat of a failing grade was the spur he needed to start studying.”

“The sudden competition from overseas manufacturers served as a spur for the local company to modernize its production line.”

Antonyms

04rider's tool

B2

n. a sharp metal object worn on a rider's boot to encourage a horse to move.

n. a metal device with a sharp point or rowel, attached to a rider's heel for prodding a horse.

“The cowboy's spurs jingled as he walked across the wooden floor.”

“The knight's silver spurs were not merely functional tools but symbols of his rank and chivalric status.”

05branch of a road or railway

C1

n. a short road or railway track that branches off from a main line.

n. a short branch line of a railway or a secondary road extending from a major thoroughfare.

“The factory is connected to the main railway by a small spur.”

“The proposed highway project includes a short spur to provide direct access to the regional airport.”

Technical

Synonyms

Antonyms

06mountain ridge

C1 · Science

n. a part of a mountain that sticks out to the side from the main peak.

n. a lateral ridge or mountain projection that extends from a main mountain mass.

“The hikers followed the rocky spur down into the valley.”

“The fortress was strategically positioned on a narrow spur of the mountain, making it nearly impossible to attack from the rear.”

Technical

Synonyms

07botany/plant part

C2 · Science

n. a short side branch on a tree, often where fruit grows.

n. a short, thick side shoot from a branch, typically one that bears fruit or flowers.

“Prune the apple tree to encourage more fruit spurs to grow.”

“The orchardist carefully examined the fruit spurs to estimate the potential yield for the upcoming harvest season.”

Technical

Synonyms

08electronics/signal

C2 · Computing

n. an unwanted signal that interferes with a radio or electronic circuit.

n. a spurious or unwanted signal frequency that interferes with the primary signal in a circuit.

“The engineer noticed a spur on the monitor that was ruining the signal.”

“The design team worked to minimize the power of the spurs generated by the frequency synthesizer to meet regulatory standards.”

Technical

Real-World Examples

“Evans hopes that this research will spur other scientists to tap the decades-deep pool of patient samples.”
Phys.org · 14 Aug 2026
“This combination captures people’s moral attention and spurs them to action.”
The Conversation · 7 Aug 2026

Idioms

spur of the moment — Impulse; short notice; a lack of planning.

Domains

ArchitectureBotanyElectronicsGeologyMining

This entry

Level
C1 · Advanced
Frequency
Frequent
Updated

Scan code

englishreference.com/q/spur

English Reference