Biological parent
Father and biological parent are semantically related. In some cases you can use "Father" instead a noun phrase "Biological parent".
Father
Father noun - A male human parent.
Biological parent and father are semantically related. You can use "Biological parent" instead a noun "Father".
Mutual synonyms
Both terms in one sentence
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This causes her to realize that her father was not actually her biological parent.
Source: Series / Timeless - Doug Supernaw's song "I Don't Call Him Daddy" is about the biological parent on the other side of this debate reflecting on the new father figure in his son's life now that his wife has remarried.
Source: New Parent Nomenclature Problem -
It is not obvious for a long, long time, thanks to the Hamel's extreme Jerkass Façade and Oboe mostly keeping in the background (not without a reason), but in the end Hamel even directly states that Oboe is only being he'll ever call "father" when confronting his Big Bad biological parent.
Source: Parental Substitute
Cite this Source
Father and Biological parent. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/biological_parent/father
Biological parent & Father. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/biological_parent/father>.
Father or Biological parent. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/biological_parent/father.
Google Ngram Viewer shows how "biological parent" and "father" have occurred on timeline