μονογενῆ [2 verses](adj sg masc acc) "Only begotten" is monogenes, which means "the only member of a kin," "only," "single," "unique," "one and the same blood," [in grammar] "having the same form in all genders," and [of plants] "growing only in one place."  -  - The term translated as "only-begotten" means "one of a kin" but more generally it means "unique" and "singular." In grammar, it also means a word having the same form in all genders, and it is kind of funny that the word, monogenes, is itself a monogenic word, having the same form in all genders. Using this word, Jesus is clearly implying that he is in some way the only son of God, the same blood and kin.