noun
Affectionate, childlike term for one's father, similar to お父さん but more casual and intimate. Often used by young children or within close families.
See also: お父さん (おとうさん)
お父ちゃん、今日は公園に連れてって!
Daddy, take me to the park today!
うちのお父ちゃんは料理が上手なんだ。
My dad is good at cooking.