26,102words currently have published synonym-style alternatives
90,593searchable synonym connections
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Wallet
A bag or sack for carrying about the person, as a bag for carrying the necessaries for a journey; a knapsack; a beggar's receptacle for charity; a peddler's pack.
A small book or case for carrying papers, money, etc., in the pocket; also, a notebook for the pocket.
oewn 202368% interchangeable
Open English WordNet places these words in at least one shared synset. They share a lexicalised sense, but context, register and collocation should still be checked before substitution.