Basic Guidelines For English Spellings
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See US English definition of spur
See UK English definition of spur
See Spanish definition of espuela
1‘the outcome of the election added a further spur to the reform movement’
disincentive, discouragement
2‘the doctor took an X-ray which showed a spur of bone on the heel’
1‘the confrontation spurred him into writing a letter of resignation’
‘his decision had been made on the spur of the moment’