Meaning of CONCURRENT in English
adj.1 (often foll. by with) a existing or in operation at the same time (served two concurrent sentences). b existing or acting together.
2 Geom. (of three or more lines) meeting at or tending towards one point.
3 agreeing, harmonious.
concurrence n. concurrently adv.
Oxford English vocab. Оксфордский английский словарь. 2012