lamppost Syllabification: (lamp·post)Pronunciation: /ˈlam(p)ˌpōst/Translate lamppost | into French | into Spanish Definition of lamppost noun a tall pole with a light at the top; a street light. Phrases between you, me, and the lamppost (or the bedpost or the wall) informal in strict confidence. lamppost in other Oxford dictionaries Definition of lamppost in the British & World English dictionary