We don't have synonyms for trade-mark yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are trademark, trade mark and trade-marks.
(n) :
Alternative form of trademark. [A word, symbol, or phrase used to identify a particular company's product and differentiate it from other companies' products.]
(v) :
Alternative form of trademark. [(transitive, proscribed) To register something as a trademark.]
(adj) :
Alternative form of trademark. [(informal) Distinctive, characteristic, signature.]
(n) :
Alternative form of trademark. [A word, symbol, or phrase used to identify a particular company's product and differentiate it from other companies' products.]
(v) :
Alternative form of trademark. [(transitive, proscribed) To register something as a trademark.]
(adj) :
Alternative form of trademark. [(informal) Distinctive, characteristic, signature.]