Kanji Rule (9): Three Signifies Many

Pictures turned into kanji. The kanji simplified the picture. If there are many things, they were made into three. Three signifies many in kanji. 

• Meaning
  volume (counter)
• Reading
  On-reading: satsu
• Mnemonics
  In ancient China, there was no paper. People used bamboo slips to write on. These slips were bound with thread. There are three bamboo slips in this picture. Three signifies many.