linchpinDict.lkDict.lk - Sinhala to English DictionaryMeaning linchpin Tweet Sinhala Dictionary definitions for linchpinlinchpin 🔊 /lɪˈnʧpɪˌn/linchpin : කඩඇණයlinchpin definitionNoun. A pin used to prevent the wheel of a vehicle from sliding off the axletree.Lern More AboutWiki Definition: linchpinGoogle Search result: GoogleWiki Article: Wikipedia Tweet