ˈdēpən, -p ə m verb
( deepened -pənd, -p ə md ; deepened “ ; deepening -p(ə)niŋ ; deepens -pənz, -p ə mz)
transitive verb
: to make deep or deeper: as
a. : to increase the depth of
deepen a well
deepen a channel
b. : to make more intense
the incident deepened the gloom
or more profound
deepened the meaning of his life
c. : to increase in degree
deepen sorrow
d. : to make lower in tone or range of pitch
deepen a pipe organ
intransitive verb
: to become deeper
the water deepened at every step
: grow more profound or obscure
with every day the mystery deepens