chopsticks
箸 centers on the utensil used for picking up food: chopsticks. The meaning is concrete and specific, with no major abstract extensions.
箸 combines 竹 (bamboo) with 者, which likely contributes the sound. The character originally referred to bamboo chopsticks, reflecting the material used to make them.
The top 竹 is bamboo, and the bottom 者 looks like a person sitting at a table. Picture bamboo sticks held by a person eating: 箸 are chopsticks.
For チョ, imagine picking up a piece of chocolate with chopsticks: cho -> チョ, and the bamboo chopsticks lift the sweet treat.
chopsticks
dispensable chopsticks; throwaway chopsticks
entremets; intermezzo; small palate-cleansing dish served between courses
chopstick rest
long chopsticks (for cooking, serving, etc.)
picking up a bowl with one's right hand which is already holding one's chopsticks (a breach of etiquette)
poking one's food around using one's chopsticks; playing with one's food with one's chopsticks (a breach of etiquette)
one's own chopsticks; washable chopsticks carried in a case (used instead of disposable chopsticks)
single chopstick stuck upright into the bowl of rice offered to the deceased at their funeral
eating with one's hands; five chopsticks
skewering one's food with a chopstick in order to pick it up (a breach of etiquette)
spoon and chopsticks
chopsticks used to move food from a serving dish to one's own dish
ringing one's chopsticks against a dish (in order to request seconds, etc.) (a breach of etiquette)
lacquered chopsticks
festive chopsticks; thick round chopsticks used on festive occasions
things prohibited by chopstick etiquette
thick chopsticks with both ends equally thin
drawing a dish towards oneself using one's chopsticks (a breach of etiquette)
things prohibited by chopstick etiquette