1) Aboveboard 2) Deductible 3) French word used in English 4) Kosher 5) Legitimate 6) Not banned 7) Permissible 8) That may be allowed 1) Accepted 2) Admissible 3) Deductible 4) Licit 5) Permissible 6) Permitted 7) Understandable 
• (a.) Praiseworthy; laudable. • (a.) 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.
the amount of oil or gas that a well is permitted by state authorities to produce during a given period 
Al·low'a·ble adjective [ French allouable .] 1. Praiseworthy; laudable. [ Obsolete] 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...
[adj] - deserving to be allowed or considered 2. [adj] - possible to allow 3. [adj] - deductible according to the tax laws
adjective deductible according to the tax laws
that may be allowed; legitimate; permissible: an allowable tax deduction.