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" [syn: {intensify}, {compound}, {heighten}]

2: become more intense; "The debate intensified" [syn: {intensify}]

3: become deeper in tone; "His voice began to change when he

was 12 years old" [syn: {change}]