pork, pig
豚 centers on the domestic pig as a source of meat: pork and the animal itself.
豚 combines ⺼ (flesh/meat) with 豕 (pig), straightforwardly representing a pig as a meat animal.
The left side ⺼ is flesh, and the right side 豕 is a pig. Together they show a pig raised for its meat: pork.
For トン, imagine a heavy pig weighing a ton: ton -> トン, and that pig provides plenty of pork.
pig (Sus scrofa domesticus)
pork
puffer fish; blow fish; fugu; globefish; swellfish
tonkatsu; breaded pork cutlet
pork miso soup; miso soup with pork and vegetables
pig-keeping; pig farming
sweet-and-sour pork
roast pork
steamed bun with minced pork filling
ragweed (Ambrosia artemisiifolia)
Dall's porpoise (Phocoenoides dalli)
anime freak; person overly interested in female anime and video game characters
African swine fever; AFS
black Iberian pig
Ganges river dolphin (Platanista gangetica); susu
Kitti's hog-nosed bat (Craseonycteris thonglongyai); bumblebee bat; Old World hog-nosed bat
Clymene dolphin (Stenella clymene)
soccer fan
Fraser's dolphin (Lagenodelphis hosei); Sarawak dolphin
truffle pig; truffle hog