deepen verb - Definition, pictures, pronunciation and usage notes . . . Definition of deepen verb from the Oxford Advanced Learner's Dictionary [intransitive, transitive] deepen (something) (into something) if an emotion or a feeling deepens, or if something deepens it, it becomes stronger Their friendship soon deepened into love
deepen, v. meanings, etymology and more | Oxford English Dictionary To deepen something, in various senses of deep, adj transitive To make (something) deep or deeper in spatial extent; to increase the depth of something 1 b intransitive To become deep or deeper in spatial extent; to increase in depth In quot 1600: (of a ship) to move into deeper water