拢 is a versatile verb with several related senses. The core meaning is 'to gather or bring together' (e.g. 把东西拢到一起). It also means 'to approach or draw near' (e.g. 船拢岸了), 'to add up or total' (e.g. 拢一下账), and in everyday speech it commonly means 'to comb or smooth hair' (e.g. 拢头发). You'll hear it most often in fixed phrases like 拢共 (altogether) or in the pattern 拢一拢 (to tidy/gather something).