lifeboat What is the Definition of lifeboat?Noun:a strong sea boat designed to rescue people from a sinking ship Other meanings of lifeboat (synonyms, cognates). ENRU lifeboat спасательныйлодка Frequently viewed: either definitionadvantage definitionrecord meaningcustom definitionenough definitiondefinition of tablelight definitiondefinition of containfavorite meaningjump definitiondefinition of walkofficial definition A B C D E F G H I J K L M N O P Q R S T U V W X Y Z