The phrase "as their grounds" is correct and usable in written English.
It can be used to refer to the basis or justification for a particular argument or action.
Example: "The committee made their decision based on the evidence presented, using the facts as their grounds for the conclusion."
Alternatives: "as their basis" or "as their justification".
Among the issues before the arbitrator, George Nicolau, is the producers' contractual obligation to pay royalties to Ms. Taymor as well as their grounds for dismissing her in October.
See Mandelbaum" "It was…characteristic of Descartes' ideal of knowledge…[that] effects were to be explained through their causes, that is, properties through the substances which served as their grounds.
Teams in the top two divisions are eligible to take part in the FA Cup and FA Vase as long as their grounds meet the required standards.
As the Alliance was a Step 5 league, its member clubs were eligible to take part in the FA Cup and FA Vase as long as their grounds met the required standards.
As their ground forces swept almost unopposed through Kuwait, then into southern Iraq, the withdrawal became a rout.
Sponsors compared badminton unfavourably with tennis, where glamorous stars such as Maria Sharapova and Venus Williams attract as much attention for their outfits as their ground strokes.
Four dancers, suspended from hanger-like rigging, used the back wall as their ground — their bodies were parallel to our ground as they flipped, cartwheeled, and dropped into James Brown-like splits.
I'm generally skeptical of these kind of essentialist arguments, since coalitions can break apart and re-form in unexpected aways, and the parties have been known to change positions dramatically as their ground shifts beneath their feet.
Feminine moral theory thereby deals a blow to the exclusively rational systems of thought, which have as their grounding an inherent disregard for the inherently personal and sometimes gender-biased nature of knowledgender-biased nature
Ms. Kim, who was born in Korea and came to Los Angeles at 12, is part of a generation of youngish filmmakers (including Ms. Reichardt and Mr. Hammer) whose global frame of reference is as notable as their ground-level, place-specific approach to cinema.
Besides perfection and necessity, immateriality, eternity, and immutability also seem to point to simplicity as their ground.
