deepen (
http://definr.com/deepen)
v 1: 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"
[syn:
intensify,
compound,
heighten]
2: become more intense; "The debate intensified"; "His dislike
for raw fish only deepened in Japan" [syn:
intensify]
3: make deeper; "They deepened the lake so that bigger pleasure
boats could use it"
4: become deeper in tone; "His voice began to change when he
was 12 years old"; "Her voice deepened when she whispered
the password" [syn:
change]