Synonyms for Payable (same or very similar meaning)
WordNet sense 1 (a liability account showing how much is owed for goods and services purchased on credit):
account payable
WordNet sense 2 (subject to or requiring payment especially as specified):
collectable, collectible
WordNet sense 3 (owed and payable immediately or on demand):
due, owed
From the ODE community, based on WordNet
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