large and roomy (`convenient' is archaic in this sense)
"a commodious harbor"
"a commodious building suitable for conventions"
Serving to reduce a difficulty, or accessible with minimum difficulty; expedient.
"The new bus stop is so convenient that I can now walk to work without missing my morning meeting."
In plain English: Something is convenient if it makes your life easier and saves you time or effort.
"The supermarket is very convenient because it is just around the corner from my house."
Usage: Use convenient to describe something that saves time or effort, such as a store located near your home. Avoid using it to mean morally right or suitable for a specific purpose, which are better expressed by appropriate or fitting.
The word comes from the Latin conveniens, meaning "fit" or "suitable," which is derived from a verb describing things coming together. It entered English through Middle English while retaining its original sense of being appropriate for a specific purpose.