You might remember the meaning of the character 峰 with this easy mnemonic:
Climb to the top of the mountain (山) peak and go (夂) wait there for one (一) or two (二) days. Here's a landline (丨) where you can reach us if you need help.
Using mnemonics to remember the meaning of Chinese characters like has a huge impact on how long to learn Mandarin it takes.