Ordinary

(redirected from ordinaries)
Also found in: Dictionary, Thesaurus, Legal, Idioms, Encyclopedia, Wikipedia.

Ordinary

Common and accepted in the general industry or type of activity in which the taxpayer is engaged. It is one of the tests for the deductibility of expenses incurred or paid in connection with a trade or business; for the production of income; for the management, conservation, or maintenance of property held for the production of income; or in connection with the determination, collection, or refund of any tax.