Home › Words › L › lagoonletlagoonletlagoonlet means A small lagoon.EtymologyFrom lagoon + -let.nounA small lagoon.e.g.“Wangava is said to have a tidal lake in the centre, while in Namuka and the two Ongea, the water has broken through the reefs of the former atolls, and opened lagoonlets to the sea;” — 1898 March 7, J. Stanley Gardiner, “The Coral Reefs of Funafuti, Rotuma and Fiji together with some Notes on the Structure and Formation of Coral Reefs in general”, in Proceedings of the Cambridge PhiDefinitions & examples from Wiktionary (CC BY-SA 3.0).