deepen

From Wiktionary

Word parts[change]

deep + -en

Pronunciation[change]

Verb[change]

Plain form
deepen

Third-person singular
deepens

Past tense
deepened

Past participle
deepened

Present participle
deepening

  1. If you deepen something, you make it deeper.
    We need to deepen this well if we are to get any water from it.