Simple Definition of deepen
: to become or to cause (something) to become deep or deeper
: to become or to cause (something, such as a feeling or emotion) to become stronger or more powerful
: to make (your knowledge, understanding, etc.) fuller or more complete
Examples of deepen
They deepened the river so that larger boats could sail through.
Age had deepened the lines in his face.
The water deepens toward the center of the river.
Her powerful words deepened our commitment to the cause.
The vacation together deepened their relationship with each other.
The mystery was deepened by her silence.
This class will deepen your understanding of economics.
Living in the country's capital had deepened her knowledge of politics.
First Known Use of deepen
Seen and Heard
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