We don't have synonyms for home sign yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are home in, name sign and toe sign.
(n) :
(uncountable) The gestural communication system, less than a complete sign language, developed by a deaf child who lacks input from a language model in the family.
(n) :
(countable) A particular sign in such a system.
(n) :
(uncountable) The gestural communication system, less than a complete sign language, developed by a deaf child who lacks input from a language model in the family.
(n) :
(countable) A particular sign in such a system.