You might remember the meaning of the character 屠 with this easy mnemonic:
The sudden slaughter led to ten (十) corpses (尸) lying in one (一) pile on this piece of earth (土), with slashes (丿) on their bodies and the sun (日) beating down on them mercilessly.
Using mnemonics to remember the meaning of Chinese characters like has a huge impact on how long to learn Mandarin it takes.