We don't have synonyms for twynne yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are gwynne, wynne and thynne.
(n) :
Obsolete spelling of twin. [Either of two people (or, less commonly, animals) who shared the same uterus at the same time; one who was born at the same birth as a sibling.]
(v) :
Obsolete spelling of twin. [(transitive, obsolete outside Scotland) To separate, divide.]
(n) :
Obsolete spelling of twin. [Either of two people (or, less commonly, animals) who shared the same uterus at the same time; one who was born at the same birth as a sibling.]
(v) :
Obsolete spelling of twin. [(transitive, obsolete outside Scotland) To separate, divide.]