[verb] make more intense, stronger, or more marked; "The efforts were intensified", "Her rudeness intensified his dislike for her"; "Potsmokers claim it heightens their awareness"; "This event only deepened my convictions" Synonyms:intensify, compound, heighten
[verb] become more intense; "The debate intensified"; "His dislike for raw fish only deepened in Japan" Synonyms:intensify
[verb] make deeper; "They deepened the lake so that bigger pleasure boats could use it"
[verb] become deeper in tone; "His voice began to change when he was 12 years old"; "Her voice deepened when she whispered the password" Synonyms:change