Definition of lifebuoy in English:

lifebuoy

Syllabification: life·bu·oy
Pronunciation: /ˈlīfˌbo͞oē
 
, ˈlīfˌboi
 
/

noun

A life preserver, especially one in the shape of a ring.
More example sentences
  • A brand new lifebuoy now sits on a post adjacent to Lake McKay at the Australian Defence College in Weston, Canberra.

Definition of lifebuoy in:

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lack of modesty