We don't have synonyms for aquaintance yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are acquaintance and quaintance.
°A state of being acquainted, or of having intimate, or more than slight or superficial, knowledge; personal knowledge gained by intercourse short of that of friendship or intimacy.
"I know of the man; but have no acquaintance with him."
°A state of being acquainted, or of having intimate, or more than slight or superficial, knowledge; personal knowledge gained by intercourse short of that of friendship or intimacy.
"I know of the man; but have no acquaintance with him."