The Britannica Dictionary
mobile search
Home
Ask the Editor
Word of the Day
Quizzes
Core Vocabulary
Browse the Dictionary
×
Britannica Homepage
Ask the Editor
Word of the Day
Quizzes
Core Vocabulary
Browse the Dictionary
The Britannica Dictionary
birth father
1 ENTRIES FOUND:
birth father
(noun)
birth father
noun
plural
birth fathers
birth father
noun
plural
birth fathers
Britannica Dictionary definition of BIRTH FATHER
[
count
]
:
the father of a child when the child is born
:
the natural father of a child who has been adopted
ASK THE EDITOR
What are the plural forms of
check-in
,
passerby
, and
spoonful
?
See the answer »
QUIZZES
Vocabulary Quiz
Test your word power
Take the Quiz »
Name That Thing
Take our visual quiz
Test Your Knowledge »
WORD OF THE DAY
zombie
:
a dead person who is able to move because of magic according to some religions and in stories, movies, etc.
Learn More »