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.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'deepen.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.