2 definitions found From WordNet (r) 2.0 [wn]: allowable adjective 1: deductible according to the tax laws 2: deserving to be allowed or considered 3: possible to allow; "a degree of freedom allowable among friends" [syn: {permitted}] From The Collaborative International Dictionary of English v.0.44 [gcide]: Allowable \Al*low"a*ble\, adjective [F. allouable.] 1. Praiseworthy; laudable. [Obs.] --Hacket. 2. Proper to be, or capable of being, allowed; permissible; admissible; not forbidden; not unlawful or improper; as, a certain degree of freedom is allowable among friends.

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