1. make more intense, stronger, or more marked

- This event only deepened my convictions

Similar word(s): compound, heighten, intensify

Definition categories: change, increase

2. become more intense

- His dislike for raw fish only deepened in Japan

Similar word(s): intensify

Definition categories: change, increase

3. make deeper

- They deepened the lake so that bigger pleasure boats could use it

Definition categories: change, enlarge

4. become deeper in tone

- Her voice deepened when she whispered the password

Similar word(s): change

Definition categories: change

Sentences with deepen as a verb:

- They deepened the well by 200 feet.

- The event deepened the prevailing gloom.

- News of her death deepened my sorrow.

- The tuner deepened the tone of the organ.

- The class deepened my understanding of the subject.

- The shared experiences deepened our relationship.

- The hypnotist then proceeded to deepen his trance.

- The water deepens as you go toward the middle of the channel.

- The crisis deepened in the following weeks.

- His voice deepened with age.

- His skill in deciphering the texts deepened with practice.

- The conversation deepened and they began to truly share.

- The new bed allowed my sleep to deepen.