Answer:
1A tapering conical or pyramidal structure on the top of a building, typically a church tower.
‘He enjoyed a reputation for building tall elegant masonry structures such as church towers and spires.’
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1.1The continuation of a tree trunk above the point where branching begins, especially in a tree of a tapering form.
‘How lovely and strange the gangly spires of trees against a thickening sky as you drive from the library humming off-key?’
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1.2A long tapering object.
‘spires of delphiniums’
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Origin
Old English spīr ‘tall slender stem of a plant’; related to German Spier ‘tip of a blade of grass’.
