父|ちちchichi[1]atamadaka (head-high)

1. nounfather
   私の父ちちは大だいの旅行りょこう好すきです。↗

   My father is a great traveler.

• Synonym父親ちちおやNeutralUnlike 「父」, which is the usual word for speaking of your own father to outsiders, 「父親」 is the objective term, as in 「父親としての責任」.
• Synonymお父さんおとうさんNeutralThe most common way to address your own father or refer to someone else's; when speaking of your own father to outsiders, use 「父」.
• SynonymおやじWrittenRead 「しんぷ」 this is a rare written word for father; the same characters read 「おやじ」 are the colloquial male term for Dad.
• Synonym父さんとうさんCasualA more casual version of 「お父さん」, used mostly as a name within the family.
• Synonym男親おとこおやNeutralContrasts with 「女親」 and stresses the male parent as opposed to the mother; rarely used.
• SynonymファーザーNeutralLoanword for father, seen mostly in names such as 「ゴッドファーザー」; not used in everyday speech.
• RelatedパパCasualColloquial loanword; an affectionate name used by children or within the family. In slang it also means a sugar daddy.
• Relatedお父様おとうさまFormalA more deferential version of 「お父さん」, used mostly for another person's father or in well-to-do families.
• Related親父しんぷWrittenRead 「しんぷ」 this is a rare written word for father; the same characters read 「おやじ」 are the colloquial male term for Dad.
• Related父上ちちうえFormalArchaic honorific for one's father, seen in period dramas and old-fashioned families; rarely used today.
• Related父君ふくんFormalWritten, archaic honorific for one's father; almost never used today.
• Related父御ちちごFormalArchaic honorific for another person's father; not used today.
• RelatedおとっつぁんCasualEdo-style colloquial name for one's father, heard mainly in period dramas; not used in modern speech.
• Related御父様おもうさまFormalThe same word as 「お父様」 written 「御父様」; the meaning and usage are identical.
• Related父ちゃんとうちゃんCasualAn affectionate, casual name for Dad with a homely or dialect flavor; can also refer to one's husband.
• Relatedお父ちゃんおとうちゃんCasualA child's affectionate name for Dad, more childish than 「お父さん」.
• Antonym母ははNeutralAntonym: the counterpart of 「父」, meaning mother; like 「父」, it is used when speaking of your own mother to outsiders.

Use 「父」 to speak of your own father to outsiders, 「お父さん」 to address him or refer to another person's father, and 「お父様」 for extra politeness; 「父親」 suits objective descriptions and 「親父（おやじ）」 is a colloquial male term. 「パパ」 is a child's word, 「父さん」 and 「父ちゃん」 casual family speech, 「父上」「父君」「父御」 archaic, and 「母」 is the antonym.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. （ちち）おとこおや。男性だんせいである親おや。