How to remember
The kanji for Father (父) resembles a man with outstretched arms, perhaps welcoming a child or providing a comforting embrace. 'Chichi' — A CHIEF-like figure, strong and leading like a father. 'Fu' — sounds like 'FUther', emphasizing the 'father' meaning. Vocabulary
お父さんおとうさん
father (polite, someone else's father) 父母ふぼ
parents (father and mother)