Everything you'd find in a floral arrangement, we have something to resemble it in fruit.

not an arrangement.

They've got a nice arrangement.

Though not a true cereal but a fruit, buckwheat seeds resemble cereal grains and are often used in a similar way to rice, barley, bulgar or quinoa, usually as a side dish.

I'll wait and see how the new arrangement goes,

A constitution is the arrangement of magistracies in a state.