five (long cylindrical things)
Counter 本 (ほん) used for long, cylindrical objects such as bottles, pens, trees, or fingers. The reading ごほん follows the standard number+counter pattern.
There are five bottles of beer in the fridge.
Please give me five pencils.
五つ is the general native Japanese counter for five items, while 五本 specifically counts long cylindrical objects.
五枚 counts five flat objects (paper, plates), whereas 五本 counts long cylindrical objects.
Compound of 五 (ご, 'five') and the counter 本 (ほん, used for long cylindrical objects). The reading ほん is the standard form after ご.