/ stɪˈletəʊ; NAmE -toʊ/ noun ( pl. -os or -oes )
1.
(also ˌstiletto ˈheel ) ( especially BrE ) a woman's shoe with a very high narrow heel; the heel on such a shoe
SYN spike heel
2.
a small knife with a narrow pointed blade
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WORD ORIGIN
early 17th cent.: from Italian , diminutive of stilo dagger.