Up for grab is a phrase used to describe something that is available or obtainable. This phrase can be substituted with synonyms such as up for grabs, up for sale, available, accessible, and open. Other synonyms for up for grab can also include obtainable, acquirable, attainable and within reach. These words all impart the sense of a tentative opportunity, something that is transient and could potentially be lost if not acted upon quickly. The essence of this phrase is the availability of something which is accessible to anyone who wants it, and the use of similar synonyms reiterates this idea.