1.NounOf Slavic languages, a verbal aspect in a verb of motion that is unidirectional (as opposed to multidirectional), a definitely directed motion, or a single, completed action (instead of a repeated action or series of actions). Concrete verbs may be either imperfective or perfective.
"(concrete) I went to the post office. (and am there now, unidirectional); (concrete) I went to the theater and had an accident. (the event occurred at the theater); (concrete) I flew to Frankfurt. (a single, completed action)"